Mirror clamp, optical assembly and laser radar

Abstract

The utility model discloses a lens clamp, an optical assembly and a laser radar, and relates to the field of optical equipment. The adhesive dispensing groove is formed in the first clamping surface of the lens clamp, so that the adhesive dispensing groove can accommodate an adhesive in the bonding and fixing process of the lens, and the adhesive is easy to flow within the range of the adhesive dispensing groove even if the adhesive flows due to extrusion and is not easy to overflow to an optical plane outside the clamping space. Therefore, when the lens clip provided by the embodiment of the utility model is bonded and fixed with the lens, the adhesive is not easy to pollute the optical plane of the lens due to overflowing, so that the optical component has good performance. Furthermore, the first adhesive with higher hardness and the second adhesive with lower hardness are combined for use, so that not only is the bonding strength ensured, but also the problem that the lens is degummed or cracked due to larger stress caused by excessive use of the first adhesive is avoided.

Description

Technical Field

[0001] The present application relates to the field of optical equipment, and in particular, to a mirror clamp, an optical component and a laser radar. Background Art

[0002] In the related art, the fixation of optical lenses is achieved by lens clips, that is, the lenses are installed in the lens clips. At present, lenses are often locked by screws, but locking by screws can easily cause the lenses to break or deflect due to uneven force, and the installation is not precise enough, which ultimately leads to the performance degradation of the optical device. If the force is not enough, it is easy to cause looseness or displacement between the lens and the lens clip. Therefore, some related technologies use adhesives (such as glue) to bond the lenses to the lens clips. However, there is also the problem that the adhesive is easy to overflow onto the optical surface, affecting the optical performance. Utility Model Content

[0003] The purpose of the present application includes providing a lens clip, an optical component and a laser radar. By improving the lens clip, the problem that the adhesive easily overflows onto the optical surface of the lens can be improved.

[0004] The embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present application provides a lens clip for fixing a lens, comprising a connecting portion, a first clamping portion and a second clamping portion, wherein the first clamping portion and the second clamping portion are arranged at a distance from each other on the connecting portion, and a clamping space for accommodating a part of the lens is formed between the first clamping portion and the second clamping portion, wherein the first clamping portion has a first clamping surface facing the second clamping portion, and the second clamping portion has a second clamping surface facing the first clamping portion, and a glue point groove is provided on the first clamping surface.

[0006] In the embodiment of the present application, by setting a glue dispensing groove on the first clamping surface of the lens clip, the glue dispensing groove can accommodate the adhesive during the bonding and fixing process of the lens. Even if the adhesive flows due to squeezing, it is easy to be restricted to flow within the range of the glue dispensing groove and is not easy to overflow onto the optical plane outside the clamping space. Therefore, when the lens clip provided by the embodiment of the present application is bonded and fixed to the lens, the adhesive is not easy to overflow and contaminate the optical plane of the lens, thereby ensuring that the optical component has good performance.

[0007] In an optional embodiment, the glue dispensing groove on the first clamping surface includes a first glue dispensing groove, and a glue dispensing platform protruding toward the clamping space is provided at the bottom of the first glue dispensing groove, and the height of the glue dispensing platform in the depth direction of the first glue dispensing groove is less than the depth of the first glue dispensing groove. By providing the glue dispensing platform, adhesive can be applied to the glue dispensing platform in advance when bonding the lens, and after the lens is bonded to the first clamping surface, the thickness of the adhesive between the glue dispensing platform and the lens is determined, and the excess adhesive overflows from between the lens and the glue dispensing platform and flows into other areas in the first glue dispensing groove, such as the side of the glue dispensing platform. Therefore, through the first glue dispensing groove, the bonding thickness of the adhesive at the first glue dispensing groove can be accurately controlled.

[0008] In an optional embodiment, the first glue dispensing groove extends along a straight line, the glue dispensing platform is strip-shaped and extends along the first glue dispensing groove, and the glue dispensing platform is spaced apart from two side walls of the first glue dispensing groove in the width direction thereof, so that the glue dispensing platform divides the first glue dispensing groove into two sub-grooves. By such an arrangement, during the process of bonding the lens, the adhesive on the glue dispensing platform can overflow to both sides and be respectively contained in the two sub-grooves, thereby achieving a better effect of containing the overflowed adhesive, and the excess adhesive is not easy to overflow the clamping space.

[0009] In an optional embodiment, the glue dispensing platform forms a glue dispensing plane toward the top of the clamping space. By designing the glue dispensing platform toward the top of the clamping space as a plane, it is more convenient to pre-apply glue before installing the lens.

[0010] In an optional embodiment, the glue dispensing groove on the first clamping surface further includes a second glue dispensing groove, and the second glue dispensing groove is spaced apart from the first glue dispensing groove. By providing the second glue dispensing groove, it is more conducive to accommodating the adhesive between the first clamping surface and the lens. In addition, by providing the second glue dispensing groove and the first glue dispensing groove spaced apart, different adhesives can also be used in the first glue dispensing groove and the second glue dispensing groove.

[0011] In an optional embodiment, the connecting portion forms the bottom of the clamping space, and the first glue spot groove and the second glue spot groove both extend in the depth direction of the clamping space. The first glue spot groove and the second glue spot groove extend in the depth direction of the clamping space, which can facilitate processing and can also avoid the adhesives between different glue spot grooves from mixing and affecting each other as much as possible when the lens is inserted in the depth direction of the clamping space.

[0012] In an optional embodiment, the first clamping portion and the second clamping portion are spaced apart in the width direction of the clamping space, and the first glue spot groove and the second glue spot groove are alternately spaced along the length direction of the clamping space, wherein the length direction of the clamping space is perpendicular to the depth direction and the width direction of the clamping space. By alternately arranging the first glue spot groove and the second glue spot groove along the length direction of the clamping space, the mechanical properties of the first clamping portion can be made more uniform and balanced, and after the lens is bonded to the clamping space, the bonding force it receives is also more uniform and balanced (especially when different adhesives are used in the first glue spot groove and the second glue spot groove).

[0013] In an optional embodiment, one end of the first glue dispensing groove and the second glue dispensing groove extends to an end face of the first clamping portion away from the connecting portion. By setting it in this way, the processing of the first glue dispensing groove and the second glue dispensing groove can be facilitated, and glue can also be applied in the first glue dispensing groove and the second glue dispensing groove.

[0014] In an optional embodiment, a third glue dispensing groove is provided on the second clamping surface, and the area of ​​the opening of the third glue dispensing groove toward the clamping space is larger than the area of ​​the opening of any glue dispensing groove on the first clamping surface toward the clamping space. By providing the third glue dispensing groove and setting its opening larger, it is possible to achieve large-area glue application.

[0015] In an optional embodiment, a glue dispensing groove is provided on the second clamping surface, and the glue dispensing groove on the second clamping surface is symmetrically arranged with the glue dispensing groove on the first clamping surface. By arranging the glue dispensing groove on the second clamping surface symmetrically with the glue dispensing groove on the first clamping surface, it is beneficial to make the adhesive force on both sides of the lens more balanced.

[0016] In an optional embodiment, the mirror clip further includes an assembly portion, which is connected to a side of the connecting portion away from the clamping space, and is provided with an assembly hole and an assembly groove for matching with the shaft body. By providing the assembly portion, the mirror clip can be easily installed on the shaft body, such as on the output shaft of the motor.

[0017] In a second aspect, the present application provides an optical component, comprising a lens and a lens clip according to any one of the embodiments of the first aspect, wherein a portion of the lens is inserted in a clamping space, and the portion of the lens inserted in the clamping space is bonded to a first clamping portion and a second clamping portion by an adhesive.

[0018] By adopting the lens clamp provided in the first aspect, the optical plane of the lens outside the clamping space is not easily contaminated by the adhesive, thereby ensuring good optical performance.

[0019] In an optional embodiment, a portion of the bonding surface of the lens is bonded by a first adhesive, and another portion of the surface is bonded by a second adhesive, and the hardness of the first adhesive after curing is higher than the hardness of the second adhesive after curing. A harder adhesive has a stronger bonding force, but there is a problem of debonding due to excessive stress between the lens and the adhesive after curing due to mismatch of thermal expansion coefficients, and even cracking and breaking of the lens. A softer adhesive can provide a certain bonding force and is not easy to apply large high and low temperature stresses to the lens. Therefore, this embodiment combines the first adhesive and the second adhesive to ensure bonding strength while avoiding the problem of excessive use of the first adhesive causing the lens to be debonded or cracked due to large stress.

[0020] In an optional embodiment, the hardness of the first adhesive after curing is greater than 40D on the Shore A scale, and the hardness of the second adhesive after curing is less than 40A on the Shore A scale.

[0021] In a third aspect, the present application provides an optical component, comprising a lens and a lens clip of any one of the embodiments of the first aspect, wherein a portion of the lens is inserted in a clamping space, and the portion of the lens inserted in the clamping space is bonded to a first clamping portion and a second clamping portion via an adhesive, wherein the lens is bonded to a glue dispensing table via a first adhesive, and the lens is bonded to a wall surface of a second glue dispensing groove via a second adhesive, and the hardness of the first adhesive after curing is higher than the hardness of the second adhesive after curing.

[0022] By combining the first adhesive and the second adhesive, the bonding strength is guaranteed while avoiding the problem of excessive use of the first adhesive causing the lens to be subjected to greater stress and debonding or cracking. Furthermore, the top of the dispensing table is closer to the bonding surface of the lens than the bottom of the first dispensing groove. Therefore, by applying the first adhesive with higher hardness on the dispensing table, the bonding thickness of the first adhesive on the bonding surface of the lens can be reduced to a certain extent. The other areas of the first dispensing groove are used to accommodate excess first adhesive. This part of the first adhesive contributes less to the adhesion effect, so it is not easy to provide high and low temperature stress to the lens. The second adhesive is applied to the second dispensing groove, and the second dispensing groove is spaced from the first dispensing groove, so the first adhesive and the second adhesive are not easy to contact and react to cause performance degradation.

[0023] In an optional embodiment, the hardness of the first adhesive after curing is greater than 40D on the Shore A scale, and the hardness of the second adhesive after curing is less than 40A on the Shore A scale.

[0024] In an optional embodiment, a third glue-dispensing groove is provided on the second clamping surface, and the area of ​​the opening of the third glue-dispensing groove toward the clamping space is larger than the area of ​​the opening of any glue-dispensing groove toward the clamping space on the first clamping surface, and the lens is bonded to the bottom of the third glue-dispensing groove by a third adhesive, and the hardness of the third adhesive after curing is lower than the hardness of the first adhesive after curing. Since the opening of the third glue-dispensing groove is larger, the bonding area of ​​the third adhesive is larger, and by selecting the third adhesive as an adhesive with a lower curing hardness, it is possible to avoid the third adhesive from generating a large stress on the lens, thereby improving debonding or lens cracking.

[0025] In an optional embodiment, the hardness of the first adhesive after curing is greater than 40D on the Shore A scale, and the hardness of the second adhesive and the third adhesive after curing is less than 40A on the Shore A scale.

[0026] In an optional embodiment, a glue dispensing groove is provided on the second clamping surface, and the glue dispensing groove on the second clamping surface is symmetrically arranged with the glue dispensing groove on the first clamping surface and has the same glue application type. By arranging the glue dispensing groove on the second clamping surface symmetrically with the glue dispensing groove on the first clamping surface and having the same glue application type, it is beneficial to make the adhesive force on both sides of the lens more balanced.

[0027] In a fourth aspect, the present application provides a laser radar, including the optical component of any embodiment of the second aspect, or including the optical component of any embodiment of the third aspect. The laser radar provided in the embodiment of the present application includes the above optical component, so it has the beneficial effects related to the above optical component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is a schematic diagram of the assembly of a lens clip and a lens in one embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of a mirror clip in an embodiment of the present application at a first viewing angle;

[0031] Figure 3 This is a schematic diagram of a mirror clip in an embodiment of the present application at a second viewing angle;

[0032] Figure 4 This is a schematic diagram of a mirror clip under a third viewing angle in an embodiment of the present application.

[0033] Icon: 100-lens clamp; 101-clamping space; 110-first clamping part; 111-first clamping surface; 112-first glue dispensing groove; 1121-sub-groove; 113-glue dispensing table; 1131-glue dispensing plane; 114-second glue dispensing groove; 120-second clamping part; 121-second clamping surface; 122-third glue dispensing groove; 130-connecting part; 140-assembly part; 141-assembly groove; 142-assembly hole; 200-lens. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish the descriptions and should not be understood as indicating or implying relative importance.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0040] In the optical components of the related art, the mirror clip and the lens are bonded with adhesive. However, the amount of adhesive used is sometimes difficult to accurately control, resulting in excess adhesive flowing outside the clamping space of the mirror clip and contacting the optical plane of the lens (i.e., the surface that realizes the optical function), which in turn leads to degradation of the performance of the optical component. In addition, different adhesives have different performances. When using adhesives with higher hardness, although the bonding strength is high and is beneficial to the stability of the lens, thermal expansion and contraction can easily cause additional stress (i.e., high and low temperature stress), causing the lens to crack. If a softer adhesive is used, the bonding strength is not easy to guarantee, especially in some vibration environments, such as when the optical component is applied to an on-board laser radar, it is easy to cause loosening or debonding between the lens and the mirror clip, thereby affecting the performance of the optical component and even the laser radar.

[0041] In order to improve at least one of the deficiencies in the above-mentioned related technologies, the embodiments of the present application provide a lens clip, an optical assembly and a laser radar. The adhesive condition between the lens and the lens clip is improved by providing a glue dispensing groove on the clamping surface of the lens clip.

[0042] Figure 1 FIG. 1 is a schematic diagram of assembling a lens clip 100 and a lens 200 in one embodiment of the present application. Figure 1 As shown, the optical assembly provided in the embodiment of the present application includes a lens 200 and a mirror clip 100, wherein a portion of the lens 200 is inserted into the clamping space 101 of the mirror clip 100 and is fixed to the mirror clip 100 by adhesive. It is understood that the optical assembly may also include other components, for example, a driving member is also included in a transmission connection with the mirror clip 100 to drive the lens 200 to rotate. Optionally, the optical assembly is a galvanometer assembly used in a laser radar.

[0043] The mirror clip 100 provided in the embodiment of the present application is introduced below. Figure 2 This is a schematic diagram of a lens clip 100 in an embodiment of the present application at a first viewing angle; Figure 3 This is a schematic diagram of a lens clip 100 in an embodiment of the present application at a second viewing angle; Figure 4 FIG. 1 is a schematic diagram of a mirror clip 100 in an embodiment of the present application at a third viewing angle. Figures 2 to 4As shown, the lens clip 100 provided in the present embodiment application includes a connecting portion 130, a first clamping portion 110 and a second clamping portion 120. The first clamping portion 110 and the second clamping portion 120 are arranged at intervals on the connecting portion 130, and a clamping space 101 for accommodating a part of the lens 200 is formed between the first clamping portion 110 and the second clamping portion 120. The first clamping portion 110 has a first clamping surface 111 facing the second clamping portion 120, and the second clamping portion 120 has a second clamping surface 121 facing the first clamping portion 110. A plurality of glue dispensing grooves are provided on the first clamping surface 111. By providing the glue dispensing grooves on the first clamping surface 111 of the lens clip 100, the glue dispensing grooves can accommodate the adhesive during the bonding and fixing process of the lens 200, and even if the adhesive flows due to extrusion, it is easy to be restricted to flow within the range of the glue dispensing grooves, and is not easy to overflow onto the optical plane outside the clamping space 101. Therefore, when the lens clip 100 provided in the embodiment of the present application is bonded and fixed to the lens 200, the adhesive is not likely to overflow and contaminate the optical plane of the lens 200, thereby ensuring that the optical component has good performance.

[0044] In the embodiment of the present application, the first clamping surface 111 and the second clamping surface 121 are two parallel and spaced surfaces, and the distance between the first clamping surface 111 and the second clamping surface 121 can be designed according to the thickness of the lens 200 to be fixed. Optionally, the distance between the first clamping surface 111 and the second clamping surface 121 is equal to the thickness of the lens 200, so that the two sides of the lens 200 can just fit with the first clamping surface 111 and the second clamping surface 121; or, the distance between the first clamping surface 111 and the second clamping surface 121 is slightly smaller than the thickness of the lens 200, so that the lens 200 is subjected to a certain clamping force in the clamping space 101; or, the distance between the first clamping surface 111 and the second clamping surface 121 is slightly larger than the thickness of the lens 200, so that the lens 200 can fit with the clamping space 101 in the clamping space 101.

[0045] In this embodiment, the first clamping portion 110 and the second clamping portion 120 are spaced apart in the width direction of the clamping space 101. The connecting portion 130 forms the bottom of the clamping space 101, so the depth direction of the clamping space 101 is the direction from the end of the first clamping portion 110 (or the second clamping portion 120) away from the connecting portion 130 to the end close to the connecting portion 130. In this embodiment, the side of the connecting portion 130 facing the clamping space 101 is a plane and is perpendicular to the first clamping surface 111 and the second clamping surface 121. The normal vector of the side of the connecting portion 130 facing the clamping space 101 is parallel to the depth direction of the clamping space 101. The length direction of the clamping space 101 is perpendicular to its depth direction and width direction.

[0046] In the embodiment of the present application, the first clamping surface 111 and the second clamping surface 121 are both provided with glue dispensing grooves, so that the first clamping portion 110 and the second clamping portion 120 are both bonded to the lens 200 .

[0047] In this embodiment, the glue dispensing grooves on the first clamping surface 111 include a first glue dispensing groove 112 and a second glue dispensing groove 114. A glue dispensing platform 113 protruding toward the clamping space 101 is provided at the bottom of the first glue dispensing groove 112, and the height of the glue dispensing platform 113 in the depth direction of the first glue dispensing groove 112 is less than the depth of the first glue dispensing groove 112, wherein the depth direction of the first glue dispensing groove 112 is perpendicular to the first clamping surface 111. In other words, the glue dispensing platform 113 does not cross the first clamping surface 111 toward the top of the clamping space 101, and is therefore within the opening of the first glue dispensing groove 112, and there is still a gap between the lens 200 and the glue dispensing platform 113 when the lens 200 is attached to the first clamping surface 111. By setting the glue dispensing platform 113, adhesive can be applied to the glue dispensing platform 113 in advance when bonding the lens 200. After the lens 200 is attached to the first clamping surface 111, the thickness of the adhesive between the glue dispensing platform 113 and the lens 200 is determined, and the excess adhesive overflows from between the lens 200 and the glue dispensing platform 113 and flows into other areas in the first glue dispensing groove 112, such as the side of the glue dispensing platform 113. Therefore, through the first glue dispensing groove 112, the bonding thickness of the adhesive at the first glue dispensing groove 112 can be accurately controlled, and the thickness is less than the depth of the first glue dispensing groove 112. Therefore, it is suitable to apply some adhesive that should not be used too much (such as the first adhesive with greater hardness mentioned later) on the glue dispensing platform 113 to ensure that there is a thinner bonding thickness between the glue dispensing platform 113 and the mirror surface.

[0048] In this embodiment, the first glue dispensing groove 112 extends in a straight line, the glue dispensing platform 113 is strip-shaped and extends along the first glue dispensing groove 112, and the glue dispensing platform 113 is spaced apart from two side walls of the first glue dispensing groove 112 in its width direction, so that the glue dispensing platform 113 divides the first glue dispensing groove 112 into two sub-grooves 1121. Through such an arrangement, during the process of bonding the lens 200, the adhesive on the glue dispensing platform 113 can overflow to both sides and be respectively contained in the two sub-grooves 1121, so the effect of containing the overflowed adhesive is better, and the excess adhesive is not easy to overflow the clamping space 101 and affect the optical plane of the lens 200. In other optional embodiments, the first glue dispensing groove 112 may also be a circular groove, a square groove or a groove of other shapes; for example, the first glue dispensing groove 112 is a circular groove, and a glue dispensing platform 113 is arranged at the bottom center thereof, and the glue dispensing platform 113 and the side wall of the first glue dispensing groove 112 form an annular glue overflow space, and the adhesive on the glue dispensing platform 113 can overflow into the annular glue overflow space along the radial direction of the first glue dispensing groove 112 after being squeezed.

[0049] In this embodiment, a glue dispensing plane 1131 is formed at the top of the glue dispensing platform 113 toward the clamping space 101. By designing the glue dispensing platform 113 toward the top of the clamping space 101 as a plane, it is more convenient to pre-apply glue before installing the lens 200. Optionally, the glue dispensing plane 1131 is parallel to the first clamping surface 111. It can be understood that the top of the glue dispensing platform 113 (specifically the glue dispensing plane 1131) is an area for bonding with the lens 200, and its bonding force with the adhesive affects the bonding effect. Therefore, in order to improve the bonding stability, the top of the glue dispensing platform 113 (specifically the glue dispensing plane 1131) can be roughened to improve the bonding force with the adhesive.

[0050] In this embodiment, the spacing distance D between the glue-dispensing plane 1131 and the first clamping surface 111 in the width direction of the clamping space 101 can determine the bonding thickness between the glue-dispensing plane 1131 and the lens 200. In order to ensure a better bonding effect, the spacing distance D can be selected as 0.1 to 3 mm; further selected as 0.1 to 1 mm, such as 0.3 mm. By reasonably controlling the spacing distance D, the bonding thickness is appropriate, especially for some adhesives with higher hardness, such as the first adhesive described later. In this way, it can be ensured that the bonding thickness of the adhesive with higher hardness will not be too large, and it is not easy to generate large high and low temperature stresses on the lens 200, resulting in debonding or cracking of the lens 200.

[0051] In this embodiment, the second glue dispensing groove 114 is spaced apart from the first glue dispensing groove 112. By providing the second glue dispensing groove 114, it is more conducive to accommodating the adhesive between the first clamping surface 111 and the lens 200. In addition, by providing the second glue dispensing groove 114 and the first glue dispensing groove 112, different adhesives can be used in the first glue dispensing groove 112 and the second glue dispensing groove 114.

[0052] Furthermore, the first glue dispensing groove 112 and the second glue dispensing groove 114 both extend in the depth direction of the clamping space 101. The first glue dispensing groove 112 and the second glue dispensing groove 114 extend in the depth direction of the clamping space 101, which can facilitate processing and also avoid the mixing of adhesives between different glue dispensing grooves as much as possible when the lens 200 is inserted in the depth direction of the clamping space 101. This reduces the mutual reaction of different adhesives during bonding, resulting in performance degradation or even failure.

[0053] In this embodiment, the first glue-dispensing groove 112 and the second glue-dispensing groove 114 are alternately arranged along the length direction of the clamping space 101. Such an arrangement can make the mechanical properties of the first clamping portion 110 more uniform and balanced, and the adhesive force received by the lens 200 after being bonded to the clamping space 101 is also more uniform and balanced (especially when the first glue-dispensing groove 112 and the second glue-dispensing groove 114 use different adhesives). Specifically in this embodiment, the number of the first glue-dispensing groove 112 is two, and the number of the second glue-dispensing groove 114 is three. One of the second glue-dispensing grooves 114 is located in the middle of the first clamping surface 111 in the length direction of the clamping space 101, and the other two first glue-dispensing grooves 112 and the two second glue-dispensing grooves 114 are symmetrically distributed on both sides of the middle second glue-dispensing groove 114. It should be understood that in other optional embodiments, the number and setting position of the first glue-dispensing groove 112 and the second glue-dispensing groove 114 can be selected as needed.

[0054] In this embodiment, the bottom of the second glue dispensing groove 114 and the bottom of the sub-groove 1121 of the first glue dispensing groove 112 are both semicircular bottoms; in other embodiments, they can also be set to flat bottoms. The connection between the side walls of the first glue dispensing groove 112 and the second glue dispensing groove 114 and the first clamping surface 111 can be rounded or chamfered to reduce the risk of machining burrs scratching the surface of the lens 200. The edges of the first clamping surface 111 and the second clamping surface 121 at both ends in the length direction of the clamping space 101 can also be rounded or chamfered.

[0055] In other optional embodiments, the second glue dispensing groove 114 can also be configured to have the same structure as the first glue dispensing groove 112 , that is, including a sub-groove 1121 and a glue dispensing platform 113 .

[0056] In this embodiment, one end of the first glue dispensing groove 112 and the second glue dispensing groove 114 extends to an end surface of the first clamping part 110 away from the connecting part 130. This arrangement facilitates the processing of the first glue dispensing groove 112 and the second glue dispensing groove 114, such as processing from the end surface of the first clamping part 110 to the direction of the connecting part 130 by a milling cutter along the depth direction of the clamping space 101; at the same time, it is also convenient to apply glue in the first glue dispensing groove 112 and the second glue dispensing groove 114. Further, one end of the first glue dispensing groove 112 and the second glue dispensing groove 114 extends to the connecting part 130.

[0057] Optionally, a glue dispensing groove is also provided on the second clamping surface 121. Specifically in the present embodiment, a third glue dispensing groove 122 is provided on the second clamping surface 121, and the area of ​​the opening of the third glue dispensing groove 122 toward the clamping space 101 is larger than the area of ​​the opening of any glue dispensing groove on the first clamping surface 111 toward the clamping space 101. By providing the third glue dispensing groove 122 and setting its opening larger, it is possible to achieve large-area glue application. The wider third glue dispensing groove 122 can be used to apply an adhesive with a lower hardness, such as the second adhesive described later, because an adhesive with a lower hardness is not likely to produce a large high and low temperature stress on the lens 200 even if a large amount of adhesive is applied.

[0058] In other optional embodiments, the glue dispensing grooves on the second clamping surface 121 may also be symmetrically arranged with the glue dispensing grooves on the first clamping surface 111 , which is helpful to make the adhesive force on both sides of the lens 200 more balanced.

[0059] In the present embodiment, the mirror clip 100 further includes an assembly portion 140, which is connected to the side of the connecting portion 130 away from the clamping space 101, and the assembly portion 140 is provided with an assembly hole 142 and an assembly groove 141 for cooperating with the shaft body. By providing the assembly portion 140, it is convenient to install the mirror clip 100 on the shaft body, such as installing it on the output shaft of the driving member. In the present embodiment, the assembly groove 141 is a semi-cylindrical groove, and the mirror clip 100 may also include a matching piece (not shown in the figure), and the matching piece is also provided with a semi-cylindrical groove. The matching piece and the assembly portion 140 are assembled to form a shaft hole together, which is used for plugging and cooperating with the shaft body. In the present embodiment, two assembly holes 142 are provided on the assembly portion 140, and the two assembly holes 142 can be selected as screw holes. Two through holes can be correspondingly provided on the matching piece, and the matching piece is fixed to the assembly portion 140 by bolts, thereby fixing the shaft body.

[0060] In the optical assembly provided in the embodiment of the present application, an adhesive can be used to bond the lens clip 100 and the lens 200, such as a first adhesive with a higher hardness after curing or a second adhesive with a lower hardness after curing. By adopting the lens clip 100 provided in the above embodiment, the optical plane of the lens 200 located outside the clamping space 101 is not easily contaminated by the adhesive, thereby ensuring good optical performance. Optionally, the hardness of the first adhesive after curing is above Shore hardness 40D, and the hardness of the second adhesive after curing is below Shore hardness 40A. Optionally, the first adhesive can be an acrylic resin or an epoxy resin, and the second adhesive can be a polyurethane polymer or a silicone rubber. In a specific embodiment, the first adhesive can be MOSON AA7100 adhesive of Manson Company, and the second adhesive can be DELO LA4899 adhesive.

[0061] Optionally, adhesives of different hardness may be used between the lens clip 100 and the lens 200. For example, a portion of the bonding surface of the lens 200 is bonded by a first adhesive, and another portion of the surface is bonded by a second adhesive. A harder adhesive has a stronger bonding force, but there is a problem that after curing, the stress between the lens 200 and the lens 200 is too large due to the mismatch of the thermal expansion coefficient, resulting in debonding, or even cracking or breaking of the lens 200. A softer adhesive can provide a certain bonding force, and it is not easy to apply large high and low temperature stresses to the lens 200. Therefore, the first adhesive and the second adhesive are used in combination in this embodiment, which not only ensures the bonding strength, but also avoids the problem that the lens 200 is subjected to large stress and debonding or cracking due to excessive use of the first adhesive.

[0062] Optionally, the lens 200 is bonded to the glue dispensing station 113 by a first adhesive, and the lens 200 is bonded to the wall of the second glue dispensing groove 114 by a second adhesive. The top of the glue dispensing station 113 is closer to the bonding surface of the lens 200 than the bottom of the first glue dispensing groove 112. Therefore, by applying the first adhesive with higher hardness to the glue dispensing station 113, the bonding thickness of the first adhesive on the bonding surface of the lens 200 can be reduced to a certain extent. The other areas of the first glue dispensing groove 112 are used to accommodate excess first adhesive, which contributes less to the adhesion effect and is not easy to provide high and low temperature stress to the lens 200. The second adhesive is applied to the second glue dispensing groove 114, and the second glue dispensing groove 114 is spaced from the first glue dispensing groove 112, so the first adhesive and the second adhesive are not easy to contact and react to cause performance degradation. Compared with the spacing D between the glue dispensing plane 1131 and the first clamping surface 111, the depth dimension of the second glue dispensing groove 114 is larger because the second adhesive has a lower hardness and is not likely to cause larger high and low temperature stresses even with a thicker bonding thickness.

[0063] by Figures 2 to 4Taking the embodiment as an example, the area of ​​the opening of the third glue-dispensing groove 122 toward the clamping space 101 is greater than the area of ​​the opening of any glue-dispensing groove on the first clamping surface 111 toward the clamping space 101, and the lens 200 is bonded to the bottom of the third glue-dispensing groove 122 by a third adhesive. The hardness of the third adhesive after curing is lower than the hardness of the first adhesive after curing. Since the opening of the third glue-dispensing groove 122 is larger, the bonding area of ​​the third adhesive is larger. By selecting the third adhesive as an adhesive with a lower curing hardness, it is possible to avoid the third adhesive from generating a larger stress on the lens 200, thereby improving the debonding or cracking of the lens 200. Optionally, the hardness of the third adhesive after curing is below 40A of the Shore hardness, and further, the third adhesive and the second adhesive can be made of the same material. Since the curing hardness of the third adhesive is lower, it is allowed to have a larger bonding area. In this embodiment, the size of the opening of the third glue-dispensing groove 122 in the length direction of the clamping space 101 is larger than 1 / 2 of the size of the second clamping surface 121 in this direction. It should be understood that the dimension of the second clamping surface 121 in the length direction of the clamping space 101 includes the dimension of the opening of the third glue dispensing groove 122 in this direction.

[0064] In other embodiments, for example, when the glue dispensing grooves on the second clamping surface 121 and the first clamping surface 111 are symmetrically arranged, the glue type on the first clamping portion 110 and the second clamping portion 120 is the same. The same glue type means that the type of adhesive used and the glue application position are the same, and further, the glue application amount can also be the same, which is conducive to making the adhesive force on both sides of the lens 200 more balanced.

[0065] The embodiment of the present application further provides a laser radar, which includes the optical component provided by the above embodiment. Specifically, the galvanometer component of the laser radar includes the above optical component, so the laser radar has the advantage of stable performance.

[0066] In summary, the embodiment of the present application discloses a mirror clip 100, an optical component and a laser radar. By setting a glue dispensing groove on the first clamping surface 111 of the mirror clip 100, the glue dispensing groove can accommodate the adhesive during the bonding and fixing process of the lens 200. Even if the adhesive flows due to extrusion, it is easy to be restricted to flow within the range of the glue dispensing groove, and it is not easy to overflow onto the optical plane outside the clamping space 101. Therefore, when the mirror clip 100 provided in the embodiment of the present application is bonded and fixed to the lens 200, the adhesive is not easy to contaminate the optical plane of the lens 200 due to overflow, thereby ensuring that the optical component has good performance. Furthermore, by combining a first adhesive with a higher hardness and a second adhesive with a lower hardness, the bonding strength is guaranteed, and at the same time, the problem of excessive use of the first adhesive causing the lens 200 to be subjected to greater stress and debonding or cracking is avoided. Furthermore, by applying a first adhesive with a higher hardness on the dispensing station 113, the bonding thickness of the first adhesive on the bonding surface of the lens 200 can be reduced to a certain extent, thereby reducing the risk of the first adhesive providing a large high and low temperature stress to the lens 200. The second adhesive is applied to the second dispensing groove 114, and the second dispensing groove 114 is spaced from the first dispensing groove 112, so the first adhesive and the second adhesive are not easy to contact and react to cause performance degradation. The laser radar provided in the embodiment of the present application includes the above-mentioned optical component, so it has the beneficial effects related to the above-mentioned optical component.

[0067] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A lens clip for fixing a lens, characterized in that: It includes a connecting part, a first clamping part and a second clamping part. The first clamping part and the second clamping part are arranged on the connecting part at an interval. A clamping space for accommodating a part of the lens is formed between the first clamping part and the second clamping part. The first clamping part has a first clamping surface facing the second clamping part, and the second clamping part has a second clamping surface facing the first clamping part. A glue point groove is provided on the first clamping surface.

2. The mirror clip according to claim 1, characterized in that: The glue dispensing groove on the first clamping surface includes a first glue dispensing groove, and a glue dispensing platform protruding toward the clamping space is provided at the bottom of the first glue dispensing groove, and the height of the glue dispensing platform in the depth direction of the first glue dispensing groove is less than the depth of the first glue dispensing groove.

3. The mirror clip according to claim 2, characterized in that: The first glue dispensing groove extends along a straight line, the glue dispensing platform is strip-shaped and extends along the first glue dispensing groove, and the glue dispensing platform is spaced apart from two side walls of the first glue dispensing groove in its width direction so that the glue dispensing platform divides the first glue dispensing groove into two sub-grooves.

4. The mirror clip according to claim 2, characterized in that: The glue dispensing platform forms a glue dispensing plane toward the top of the clamping space.

5. The mirror clip according to claim 2, characterized in that: The glue dispensing groove on the first clamping surface also includes a second glue dispensing groove, and the second glue dispensing groove is spaced apart from the first glue dispensing groove.

6. The mirror clip according to claim 5, characterized in that: The connecting portion forms the bottom of the clamping space, and the first glue dispensing groove and the second glue dispensing groove both extend along the depth direction of the clamping space.

7. The mirror clip according to claim 6, characterized in that: The first clamping portion and the second clamping portion are spaced apart in the width direction of the clamping space, and the first glue dispensing groove and the second glue dispensing groove are alternately spaced along the length direction of the clamping space, wherein the length direction of the clamping space is perpendicular to the depth direction and the width direction of the clamping space.

8. The mirror clip according to claim 6, characterized in that: One end of the first glue dispensing groove and the second glue dispensing groove extends to an end surface of the first clamping portion away from the connecting portion.

9. The mirror clip according to any one of claims 1 to 8, characterized in that: A third glue dispensing groove is provided on the second clamping surface, and an opening area of ​​the third glue dispensing groove toward the clamping space is larger than an opening area of ​​any one of the glue dispensing grooves on the first clamping surface toward the clamping space.

10. The mirror clip according to any one of claims 1 to 8, characterized in that: The second clamping surface is provided with a glue dispensing groove, and the glue dispensing groove on the second clamping surface is symmetrically arranged with the glue dispensing groove on the first clamping surface.

11. The mirror clip according to any one of claims 1 to 8, characterized in that: The mirror clip also includes an assembly portion, which is connected to a side of the connecting portion away from the clamping space, and is provided with an assembly hole and an assembly groove for cooperating with the shaft body.

12. An optical component, characterized in that: It comprises a lens and the lens clip according to any one of claims 1 to 11, wherein a part of the lens is inserted in the clamping space, and the part of the lens inserted in the clamping space is bonded to the first clamping part and the second clamping part by an adhesive.

13. The optical component according to claim 12, characterized in that A portion of the bonding surface of the lens is bonded by a first adhesive, and another portion of the surface is bonded by a second adhesive. The hardness of the first adhesive after curing is higher than the hardness of the second adhesive after curing.

14. The optical component according to claim 13, characterized in that The hardness of the first adhesive after curing is greater than 40D on the Shore A scale, and the hardness of the second adhesive after curing is less than 40A on the Shore A scale.

15. An optical component, characterized in that: It includes a lens and a lens clip as described in any one of claims 5 to 8, wherein a portion of the lens is inserted in the clamping space, and the portion of the lens inserted in the clamping space is bonded to the first clamping portion and the second clamping portion via an adhesive, wherein the lens is bonded to the glue dispensing table via a first adhesive, and the lens is bonded to the wall of the second glue dispensing groove via a second adhesive, and the hardness of the first adhesive after curing is higher than the hardness of the second adhesive after curing.

16. The optical component according to claim 15, characterized in that The hardness of the first adhesive after curing is greater than 40D on the Shore A scale, and the hardness of the second adhesive after curing is less than 40A on the Shore A scale.

17. The optical component according to claim 15, characterized in that A third glue dispensing groove is provided on the second clamping surface, and an opening area of ​​the third glue dispensing groove toward the clamping space is larger than an opening area of ​​any one of the glue dispensing grooves on the first clamping surface toward the clamping space. The lens is bonded to the bottom of the third glue dispensing groove by a third adhesive, and a hardness of the third adhesive after curing is lower than a hardness of the first adhesive after curing.

18. The optical component according to claim 17, characterized in that The hardness of the first adhesive after curing is greater than 40D on the Shore A scale, and the hardness of the second adhesive and the third adhesive after curing is less than 40A on the Shore A scale.

19. The optical component according to claim 15, characterized in that The second clamping surface is provided with a glue dispensing groove, and the glue dispensing groove on the second clamping surface is symmetrically arranged with the glue dispensing groove on the first clamping surface and has the same glue application type.

20. A laser radar, characterized in that: An optical component comprising any one of claims 12-14, or an optical component comprising any one of claims 15-19.

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