Lens driving device, camera device, and electronic device

Abstract

The present invention provides a lens driving device, a camera device, and an electronic device that can be easily manufactured. The lens driving device (1) includes a base assembly (12A), and the base assembly (12A) has: a plate-shaped base (20A) having a through-hole (23) provided at the center; a fixing member (22) for fixing a box-shaped housing (18A) to the base (20A); and a terminal member (21) for flowing a driving current. The fixing member (22) and the terminal member (21) are formed of the same metal material and are electrically separated, and are arranged so as not to overlap each other when viewed from the normal direction of the plate-shaped base (20A). The fixing member (22) and the terminal member (21) each have a main body portion (221, 123) buried in the base, and at least one of the main body portions (221) among the main body portions (221, 123) forms a substantially annular shape between the periphery of the through-hole (23) and the outer peripheral end portion of the base (20A).

Description

Technical Field

[0001] The present invention relates to a lens driving device, a camera device, and an electronic device. Background Art

[0002] In recent years, in an electronic device such as a smartphone, a small camera device is mounted, and in this camera device, a lens driving device as shown in Patent Document 1 is mounted.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2010-217575. Summary of the Invention

[0006] In view of the above, in this lens driving device, a metal plate is insert-molded into a base, and is used as a fixing portion for fixing a yoke and a terminal for flowing current to a driving portion.

[0007] The terminal is electrically insulated from the fixing portion and is provided below the fixing portion. Since the terminal and the fixing portion are formed of different members and insert-molded, there is a problem in that manufacturing is difficult.

[0008] An object of the present invention is to provide a lens driving device, a camera device, and an electronic device that solve the above problems and can be easily manufactured.

[0009] In order to achieve the above object, a lens driving device of the present invention is characterized in that it includes a base assembly having: a rectangular plate-shaped base provided with a through hole in the center; a fixing member having a fixing portion for fixing a box-shaped housing to the base; and a terminal member for flowing driving current, the fixing member and the terminal member being formed of the same metal material and electrically separated, and being arranged so as not to overlap each other when viewed from the normal direction of the plate-shaped base, the terminal member having a first main body portion buried in the base and being arranged at two adjacent corners of the base, the fixing member having a second main body portion buried in the base, and the second main body portion being a ring-shaped main body portion that is separately formed as a complete ring that completely surrounds the through hole along the peripheral shape of the through hole of the base between the periphery of the through hole and the outer peripheral end of the base.

[0010] In addition, the present invention provides a camera device including the above lens driving device.

[0011] Furthermore, the present invention provides an electronic device including the above camera device.

[0012] According to the present invention, the following structure is adopted: the fixing member and the terminal member are formed of the same metal material, electrically separated, and arranged in a non-overlapping manner when viewed from the normal direction of the plate-shaped base. The fixing member and the terminal member each have a main body portion buried in the base, and a substantially annular shape is formed between the periphery of the through hole and the outer peripheral end portion of the base through at least one of the main body portions. Therefore, an effect is obtained in which the fixing member and the terminal member can be formed of the same member and insert-molded, so that the lens driving device can be easily manufactured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. 1 is an example of an exploded perspective view showing a lens driving device according to an embodiment of the present invention.

[0014] Figure 2 FIG. 2 is Figure 1 a cross-sectional view of an assembled body of the lens driving device shown in FIG. 1.

[0015] Figure 3 FIG. 3 is an example of an exploded perspective view showing an outer shell and base assembly of a lens driving device according to an embodiment of the present invention.

[0016] Figure 4 FIG. 4 is Figure 3 a perspective view of the base assembly shown in FIG. 3.

[0017] Figure 5 FIG. 5 is an example of an exploded perspective view showing an outer shell and base assembly of a lens driving device according to another embodiment of the present invention.

[0018] Figure 6 FIG. 6 is Figure 5 a perspective view of the base assembly shown in FIG. 5.

[0019] REFERENCE NUMERAL DESCRIPTION

[0020] 1 Lens driving device; 12A, 12B Base assemblies; 18A, 18B Housings; 20A, 20B Bases; 21 Terminal member; 22 Fixing member; 23 Through-hole; 24a - 24d Fitting pieces; 25a - 25d Positioning portions; 26a - 26d First to fourth corner portions; 30 Lens support; 31 Thread groove; 32 Groove; 33 Coil; 34 Magnet; 36 Washer; 41a Outer portion; 41b Outer portion; 41c Inner portion; 41d Arm portion; 42a Outer portion; 42b Outer portion; 42c Inner portion; 42d Arm portion; 50 Driving portion; 61 Outer portion; 62 Inner portion; 63 Arm portion; 121 External terminal portion; 122 Internal terminal portion; 123 Main body portion; 124 Protrusion; 181 Drooping portion; 182 Through-hole; 201 Base main body portion; 202 Flange portion; 203 Notch portion; 220 Embedded portion; 221 Main body portion; 222 Fixing portion; 223 Connecting portion; 224, 227 Protrusions; 225 I-shaped main body portion; 226 U-shaped main body portion. Detailed implementation mode

[0021] Hereinafter, with reference to the drawings, the lens driving device according to the embodiment of the present invention will be described in detail. In addition, the present invention is not limited only to the following embodiments, and various changes can be made obviously without departing from the gist of the present invention. In addition, the drawings are schematic, and there are cases where the ratio of each dimension, etc. is different from the actual situation. Specific dimensions, etc. should be judged with reference to the following description. In addition, it is obvious that there are also parts with different dimensional relationships and ratios between the drawings. In addition, in each drawing, the same reference numeral indicates the same or equivalent structural elements.

[0022] The lens driving device 1 according to the first embodiment of the present invention is used for a camera device that is mounted on an electronic device such as a mobile phone or a smart phone to achieve a focus adjustment function. For the convenience of description, in this embodiment, the object side in the optical axis direction of the lens driving device 1 is also referred to as the upper side, and the opposite object side is referred to as the lower side.

[0023] The lens driving device 1 of this embodiment is as Figure 1As shown, it includes: a base assembly 12A; a lens support 30 that moves relative to the base assembly 12A; a lower side leaf spring 40 and an upper side leaf spring 60 that support the lens support 30; and a housing 18A disposed above the base assembly 12A to house the lens support 30. Additionally, it includes a coil 33 and a magnet 34 as a driving unit 50 that generates a driving force for the lens support 30 to move relative to the base assembly 12A. The lower side leaf spring 40 also functions as a current path portion for supplying current to the coil 33. Through holes are respectively formed in the centers of these base assembly 12A, lens support 30, lower side leaf spring 40, upper side leaf spring 60, and housing 18A, and their centers are substantially aligned. Additionally, a lens body (not shown) is installed in the through hole of the lens support 30, and light from the upper side, i.e., the photographing object side, passes through these through holes and the lens body and is incident on a light receiving sensor (not shown) disposed below the lens driving device 1.

[0024] Viewed from the optical axis direction of the lens body, the base assembly 12A is rectangular, as Figure 3 shown, and has: a rectangular non-conductive base 20A with a through hole 23 provided in the center; a fixing member 22 for fixing the housing 18A to the base 20A; and a terminal member 21 for flowing driving current. The terminal member 21 and the fixing member 22 are integrally formed with the base 20A by being buried in the base 20A in a manner that a part thereof is exposed.

[0025] As Figure 3 and Figure 4 shown, the base 20A is formed of, for example, an insulating resin material, and has a substantially rectangular plate-shaped base main body portion 201 with a through hole provided in the center, and a flange portion 202 that protrudes outward from the outer periphery of the base main body portion 201 and abuts against the lower end of the housing 18A. The terminal member 21 and the fixing member 22 are buried in the base main body portion 201 by insert molding (integral molding) in a manner that a part thereof is exposed. Near the center of the base 20A, a circular through hole 23 is formed at a position corresponding to a light receiving sensor (not shown). Additionally, a cutout portion 203 that is cut to the side edge of the base main body portion 201 is provided in the flange portion 202. At the four corner portions of the base main body portion 201, fitting pieces 24a to 24d that fit with the inner wall of the housing 18A are erected. At the first and second corner portions 26a, 26b of the base 20A, the terminal members 21 are respectively disposed. The external terminal portion 121 of the terminal member 21 protrudes downward from the lower side surface of the base main body portion 201, and the internal terminal portion 122 is exposed from the upper side surface of the base main body portion 201. However, in Figure 4In [description], the external terminal portion 121 of the second corner portion 26b cannot be seen. Additionally, on the upper surfaces of the first to fourth corner portions 26a to 26d, columnar positioning portions 25a to 25d for positioning the lower side leaf spring 40 to be mounted on the base assembly 12A are erected.

[0026] The terminal member 21 is connected to an external power source that supplies driving current to the driving unit 50 and is formed as a bent plate-shaped metal plate. The external power source is provided outside the lens driving device 1. The terminal member 21 has an external terminal portion 121 electrically connected to the external power source and an internal terminal portion 122 electrically connected to the lower side leaf spring 40 serving as a current path portion. In this first embodiment, a long metal plate can be bent 90° in the length direction to form the external terminal portion 121 and the internal terminal portion 122. Additionally, the terminal member 21 has a main body portion 123 that sinks and extends from the internal terminal portion 122. The main body portion 123 is buried inside the base main body portion 201 to increase the fixing strength of the terminal member 21 to the base 20A. A protruding portion 124 protrudes from the main body portion 123 toward the outside of the base 20A.

[0027] The fixing member 22 has a main body portion 221 formed in a ring shape between the peripheral edge of the through hole 23 in the base 20A and the outer peripheral edge portion of the base 20A, and the main body portion 221 forms a buried portion 220 that is buried in the base main body portion 201. In this first embodiment, the main body portion 221 is a ring-shaped main body portion formed separately as a complete ring. The fixing member 22 includes a fixing portion 222 formed to stand up relative to the main body portion 221 so as to be exposed from the base main body portion 201. As Figure 3 shown, the buried portion 220 of the fixing member 22 includes a main body portion 221 that completely surrounds along the peripheral shape of the through hole 23 in the base 20A, and a connecting portion 223 for connecting the main body portion 221 and the fixing portion 222. Additionally, two connecting portions 223 extend from the main body portion 221 to two opposing side edges of the base main body portion 201 each, and the fixing portion 222 is bent upward from each connecting portion 223 so that its outer surface is coplanar with the side edge of the base main body portion 201 and stands up on the side edge of the base main body portion 201. The fixing portion 222 faces the inner wall surface of the housing 18A with a very small gap therebetween and can fix the housing 18A by adhesion or welding, etc. Additionally, a protruding portion 224 protrudes from the main body portion 221 toward the outside of the base 20A.

[0028] In addition, the terminal member 21 and the fixing member 22 are insert-molded into the base 20A in a state of being integrally formed with one housing via the arm portions. Further, after molding, the arm portions are cut off so that the terminal member 21 and the fixing member 22 are separated from the housing and from each other. Accordingly, the terminal member 21 is formed of the same metal material as the fixing member 22. Further, the protruding portion 124 and the protruding portion 224 are residues of the terminal member 21 and the fixing member 22 integrally formed with one housing via the arm portions. In view of this, the main body portion of the terminal member 21 and the main body portion of the fixing member 22 are preferably provided at substantially the same height within the plate-like base 20A. Further, the protruding portion 124 and the protruding portion 224 preferably protrude outward from substantially the same height of the plate-like base 20A. Further, the protruding portion 124 and the protruding portion 224 are provided within the cutout portion 203. The terminal member 21 and the fixing member 22 can be manufactured by blanking and bending a single metal plate. In the base assembly 12A, when viewed from the normal direction of the plate-like base 20A, i.e., the vertical direction, the terminal member 21 and the fixing member 22 are arranged so as not to overlap each other and are electrically separated. Thus, the terminal member 21 and the fixing member 22 can be integrally formed so that the lens driving device can be easily manufactured.

[0029] Return to Figure 1 , on the upper side of the base assembly 12A, the lens support 30 is supported via the lower leaf spring 40 and the upper leaf spring 60. The lower leaf spring 40 is divided into two, the first and second lower leaf springs 41 and 42, and is integrally formed of a metal material (conductive material). The first and second lower leaf springs 41 and 42 also function as current path portions through which current supplied to the drive unit 50 flows, and each include outer portions 41a, 41b, 42a, 42b, inner portions 41c, 42c, and arm portions 41d, 42d. The outer portions 41a, 42a are positioned by the positioning portions 25a, 25b at the first and second corner portions 26a, 26b and are fixed to the upper surface of the base 20A. The outer portions 42b, 41b are positioned by the positioning portions 25c, 25d at the third and fourth corner portions 26c, 26d and are fixed to the upper surface of the base 20A. The inner portions 41c, 42c are fixed to the lower side portion of the lens support 30. The arm portion 41d connects the outer portion 41a, 41b and the inner portion 41c, and the arm portion 42d connects the outer portion 42a, 42b and the inner portion 42c, and is elastically deformable. The outer portions 41a, 42a are further electrically connected to the internal terminal portion 122 by solder or the like.

[0030] The upper side leaf spring 60 is not divided into two like the lower side leaf spring 40, but has the same structure as the lower side leaf spring 40. The upper side leaf spring 60 has an outer portion 61 fixed to the washer 36, an inner portion 62 fixed to the upper side portion of the lens support 30, and an arm portion 63 connecting the outer portion 61 and the inner portion 62, where the washer 36 is fixed to the housing 18A. The arm portion 63 can be elastically deformed.

[0031] The lens support 30 is provided with a coil 33 on its outer periphery. The coil 33 forms part of the drive unit 50. In addition, the lens support 30 has a circular through-hole in the center for fixing the lens body, and, as Figure 1 and Figure 2 shown, a threaded groove 31 for screwing in the lens body can also be provided on its inner periphery. The outer shape of the lens support 30 is an octagon with the corners of the square cut off when viewed from the up and down directions, and a groove 32 for positioning the coil 33 is provided at approximately the center of its outer periphery. The coil 33 is arranged by being wound around this groove 32. In addition, one end of the coil 33 is electrically connected to the inner portion 41c of the first lower side leaf spring 41, and the other end is electrically connected to the inner portion 42c of the second lower side leaf spring 42. With the above structure, the current supplied from the external power source to the lens driving device 1 reaches the internal terminal portion 122 from one external terminal portion 121 of the terminal member 21. Then, it flows from the internal terminal portion 122 to the outer portion 41a of the first lower side leaf spring 41 of the lower side leaf spring 40, and then reaches the inner portion 41c via the arm portion 41d. Then the current flows into the coil 33 from the inner portion 41c. The current then passes through the inner portion 42c, the arm portion 42d, the outer portion 42a of the second lower side leaf spring 42, and then returns to the external power source through the other internal terminal portion 122 and the external terminal portion 121 of the terminal member 21. In this way, current can be supplied to the coil 33, and thus the lower side leaf spring 40 functions as a current path portion.

[0032] The magnet 34 is arranged in the housing 18A, and the drive unit 50 that generates a driving force for causing the lens support 30 to move relative to the base assembly 12A is constituted by the coil 33 and the magnet 34. As Figure 2 shown, the magnet 34 is adhered to the housing 18A so as to face the coil 33. Further, the magnet 34 is a rectangular parallelepiped, and one is arranged on the inner side of each side wall of the housing 18A. Therefore, when current flows through the coil 33, an electromagnetic force is generated between the magnet 34 and the coil 33, and thus the relative movement of the lens support 30 and the base assembly 12A can be driven.

[0033] The housing 18A is disposed above the base assembly 12A, and is assembled to the base assembly 12A in such a manner that a generally circular through-hole is formed in the center to contain the lens support 30 therein. The housing 18A may also be formed of a magnetic material. When the housing 18A is assembled to the base assembly 12A, the fitting pieces 24a to 24d of the base 20A are fitted into the housing 18A, and the flange portion 202 abuts against the lower end of the housing 18A. In addition, hanging portions 181 that hang downward are formed corresponding to the respective corners of the housing 18A. The hanging portions 181 of the housing 18A are arranged so as to be received in the recesses formed in the outer periphery of the lens support 30, and can function as stoppers against the rotation or movement of the lens support 30.

[0034] In addition, as Figure 3 shown, two rectangular through-holes 182 are provided in each of the two opposing side walls of the housing 18A. The through-holes 182 expose the fixing portions 222 of the fixing member 22 that face the inner wall at the lower part of the housing 18A, and are blocked by the fixing portions 222. After the housing 18A is snapped onto the base assembly 12A, the fixing portions 222 and the through-holes 182 are welded from the outside, thereby firmly fixing the housing 18A.

[0035] Thus, in the lens driving device 1 of the present embodiment, the fixing member 22 and the terminal member 21 are formed of the same metal material and are electrically separated, and are arranged so as not to overlap each other when viewed from the normal direction of the plate-shaped base 20A. The fixing member 22 and the terminal member 21 each have main body portions 221 and 123 buried in the base 20A, and are formed in a substantially annular shape between the peripheral edge and the outer peripheral end of the through-hole 23 by at least one of the main body portions 221 and 123. Therefore, the effect of being able to form the terminal member 21 and the fixing member 22 with the same member, and thus being able to easily manufacture the lens driving device 1 is obtained. In addition, since the substantially annular metal member is disposed inside the base 20A, the strength of the base 20A is increased.

[0036] Above, based on Figures 1 to 4 , the lens driving device 1 according to the first embodiment of the present invention has been described, but the specific structure is not limited to this embodiment, and also includes designs and the like within the scope not departing from the gist of the present invention.

[0037] Next, with reference to Figure 5 and Figure 6 , the lens driving device according to the second embodiment of the present invention will be described. Figure 5 An example of the exploded structure of the housing 18B and the base assembly 12B of the lens driving device according to the second embodiment of the present invention is shown, Figure 6 and Figure 5 shows the structure after the base assembly 12B is assembled. As Figure 6As shown, the lens driving device according to the second embodiment is different from the first embodiment in that the base assembly 12A and the housing 18A are replaced with the base assembly 12B and the housing 18B. Except for these differences, the structure is the same as that of the first embodiment. In addition, in the second embodiment, components having substantially the same functional structure as those in the first embodiment are denoted by the same reference numerals, and repeated descriptions are omitted.

[0038] As Figure 5 and Figure 6 shown, the base assembly 12B has a rectangular shape when viewed from the optical axis direction of the lens body, and includes: a rectangular non-conductive base 20B having a through hole 23 formed in the center; a fixing member 22 for fixing the housing 18B to the base 20B; and a terminal member 21 for flowing a driving current. The terminal member 21 and the fixing member 22 are integrally formed on the base 20B so that a part thereof is exposed.

[0039] In addition, similar to the base 20A of the first embodiment, the base 20B has a substantially rectangular base main body portion 201 having a through hole formed in the center, and a flange portion 202 that protrudes outward from the outer periphery of the base main body portion 201 and abuts against the lower end of the housing 18B. A cutout portion 203 that is cut to the side edge of the base main body portion 201 is provided in the flange portion 202. In addition, on the upper side surfaces of the first to fourth corner portions 26a to 26d, columnar positioning portions 25a to 25d for positioning the lower side leaf spring 40 are provided, but the fitting pieces 24a to 24d in the base 20A of the first embodiment are not provided.

[0040] Similarly, the terminal member 21 is formed by bending a plate-like metal plate, and includes: an external terminal portion 121 electrically connected to an external power supply and an internal terminal portion 122 electrically connected to the lower side leaf spring 40 as a current path portion; and a main body portion 123 that sinks and extends from the internal terminal portion 122 and is buried in the inside of the base main body portion 201. In the main body portion 123, a protruding portion 124 of a residue connected to an external frame during insert molding protrudes outward from the base 20B. The protruding portion 124 is provided in the cutout portion 203 of the base 20B.

[0041] The main body of the fixing member 22 of the present embodiment has an I-shaped main body portion 225 and a U-shaped main body portion 226 that are separated from each other. The I-shaped main body portion 225 is arranged along the opening of the "U" of the U-shaped main body portion 226. That is, the U-shaped main body portion 226 is shaped to surround in the order of the first corner portion 26a, the fourth corner portion 26d, the third corner portion 26c, and the second corner portion 26b of the base 20B. The I-shaped main body portion 225 is formed in such a way as to connect the first corner portion 26a and the second corner portion 26d. Moreover, the main body portion 123 of the terminal member 21 is arranged between the end portions of the respective I-shaped main body portion 225 and the U-shaped main body portion 226. Thus, the fixing member 22 and the terminal member 21 are formed in a substantially annular shape between the peripheral edge of the through hole 23 and the outer peripheral edge portion of the base 20B through the main body of the fixing member 22, that is, the I-shaped main body portion 225 and the U-shaped main body portion 226, and the main body portion 123 of the terminal member 21. The protruding portion 227 of the residue connected to the external frame during insert molding is formed to protrude from the I-shaped main body portion 225 and the U-shaped main body portion 226 toward the outside of the base 20B respectively. The protruding portion 227 is provided in the cutout portion 203.

[0042] The terminal member 21 and the fixing member 22 are integrally formed with a frame via the arm portion and then insert molded into the base 20B. Moreover, after molding, the arm portion is cut off, so that the terminal member 21 and the fixing member 22 are separated from the frame and from each other. Thus, the fixing member 22 and the terminal member 21 are formed of the same metal material. The terminal member 21 and the fixing member 22 before insert molding are formed by blanking a metal sheet. In the base assembly 12B, the fixing member 22 is formed to be electrically separated from the terminal member 21 and do not overlap each other when viewed from the normal direction of the plate-shaped base 20B.

[0043] The main body portion of the terminal member 21 and the main body portion of the fixing member 22 are preferably provided at substantially the same height within the plate-shaped base 20B. In addition, the protruding portion 124 and the protruding portion 227 preferably protrude outward from substantially the same height of the plate-shaped base 20B. The protruding portion 124 and the protruding portion 227 face the lower end of the housing 18B with a very small gap therebetween. Only the protruding portion 227 fixes the housing 18B by adhesion, welding, or the like. That is, the protruding portion 227 also serves as a fixing portion for fixing the housing 18B. Therefore, the housing 18B is not provided with a through hole 182 as in the housing 18A of the first embodiment. It is also not necessary to separately provide a fixing portion for fixing the housing 18B as in the fixing portion 222 of the first embodiment, and the protruding portion 227 is used for fixing the housing 18B. In this way, the terminal member 21 and the fixing member 22 can be formed of the same member, so that the effect of being able to easily manufacture the lens driving device 1 can be obtained. In addition, since a substantially annular metal member is arranged inside the base 20B, the strength of the base 20B is increased.

[0044] As described above, with reference to the accompanying drawings, the preferred embodiments of the present invention have been described in detail. However, those skilled in the art can implement the present invention with various modifications without departing from the scope and gist of the present invention. For example, the features of one embodiment can be combined with those of other embodiments to obtain another embodiment. As long as it is a modification, equivalent substitution, or improvement of the gist of the present invention, it will be included in the scope of the claims of the present invention.

[0045] For example, the formation of the substantially ring-shaped fixing member 22 and the terminal member 21 is not limited to the examples of the above embodiments. The external terminal portion 121 of the terminal member 21 can also be arranged at the first corner portion 26a and the fourth corner portion 26d, the internal terminal portion 122 can be arranged at the second corner portion 26b and the third corner portion 26c, and the main body portion 123 can be provided to connect the external terminal portion 121 and the second terminal portion 122. In this case, the main body portion 221 of the fixing portion 22 is arranged between the two external terminal portions 121 and between the two internal terminal portions 122. Additionally, further expanding this method, the main body portion 123 can be further extended from the external terminal portion 121 and the internal terminal portion 122 to form a substantially ring shape, and the fixing member 22 can be arranged on the outside thereof.

[0046] In addition, the fixing portions 222 and the protruding portions 227 can be provided on two opposing side edges or each side edge, but it is preferred to provide a total of four or more. Additionally, the protruding portions 124, 224, and 227 are preferably not more protruding outward than the flange portions 202 of the bases 20A and 20B. Also, in the vertical direction, the upper surfaces of the protruding portions 124, 224, and 227 are preferably not higher than the upper surface of the flange portion 202.

[0047] In addition, the driving portion 50 is composed of a coil 33 and a magnet 34, but it is not limited thereto. For example, a piezoelectric element or a shape memory alloy can also be used. Additionally, as the current path portion, a leaf spring is used, but it is not limited thereto, and only a lead wire is also acceptable.

[0048] With the above structure, the lens driving device 1 of the embodiment of the present invention can be constituted. However, the lens driving device 1 can also be installed in a camera device, and the camera device having the above lens driving device 1 can also be installed in an electronic device. As such an electronic device, there are portable terminals such as smart phones, game machines, and personal computers. These portable terminals can also include a camera device having the above lens driving device 1.

Claims

1. A lens driving device, characterized in that: it includes a base assembly, and the base assembly has: a rectangular plate-shaped base with a through hole provided in the center; a fixing member having a fixing portion for fixing a box-shaped housing to the base; and a terminal member for flowing a driving current, the fixing member and the terminal member are formed of the same metal material and are electrically separated, and are arranged in a non-overlapping manner when viewed from the normal direction of the plate-shaped base, the terminal member has a first main body portion buried in the base and is arranged at two adjacent corners of the base, the fixing member has a second main body portion buried in the base, and the second main body portion is a ring-shaped main body portion that is separately formed into a complete ring completely surrounding the through hole along the peripheral shape of the through hole of the base between the peripheral edge of the through hole and the outer peripheral end of the base.

2. The lens driving device according to claim 1, characterized in that: the first main body portion of the terminal member and the second main body portion of the fixing member are provided at the same height within the plate-shaped base.

3. The lens driving device according to claim 1, characterized in that: the fixing member and the terminal member respectively have protruding portions, and the protruding portions extend from the first main body portion and the second main body portion and protrude outward from the same height of the plate-shaped base.

4. The lens driving device according to claim 3, characterized in that: the housing is fixed to the protruding portion of the fixing member as the fixing portion.

5. The lens driving device according to claim 3, characterized in that: the base has a flange portion that protrudes outward and abuts against the housing, and a notch portion for accommodating the protruding portion is provided in the flange portion.

6. The lens driving device according to claim 1, characterized in that: the fixing portion stands up relative to the second main body portion and fixes the inner wall of the housing.

7. The lens driving device according to claim 6, characterized in that: the housing has a through hole blocked by the fixing portion, and the housing is fixed to the fixing portion via the through hole.

8. The lens driving device according to claim 1, characterized in that: the terminal member includes an external terminal portion protruding downward from the base and an internal terminal portion exposed from the upper surface of the base, and the first main body portion, the external terminal portion, and the internal terminal portion are integrally formed.

9. A camera device includes the lens driving device according to any one of claims 1 to 8.

10. An electronic device includes the camera device according to claim 9.

Images