Device of reducing vibration of cooling fan for camera module

Abstract

The present invention relates to a vibration reduction device for a cooling fan of a camera module, and more specifically, to a vibration reduction device for a cooling fan of a camera module that prevents vibrations of a cooling fan for cooling a camera module from being transmitted to the camera module. A vibration reduction device for a cooling fan of a camera module according to one embodiment of the present invention may include: a lower block fixed to the camera module; a cooling fan disposed on the upper part of the lower block; a lower spring provided between the lower block and the lower part of the cooling fan; an upper block disposed on the upper part of the cooling fan; an upper spring provided between the upper part of the cooling fan and the upper block; and a cover fixed to the upper part of the upper block.

Description

Technology Field

[0001] The present invention relates to a vibration reduction device for a cooling fan of a camera module, and more specifically, to a vibration reduction device for a cooling fan of a camera module that prevents vibration of a cooling fan for cooling a camera module from being transmitted to the camera module. Background Technology

[0002] Recently, as the resolution of industrial cameras increases and communication speeds become faster, the amount of heat generated by the cameras also increases. When the amount of heat generated by the camera increases in this way, the camera operates at high temperatures, causing hot pixel noise to occur.

[0003] This hot pixel noise is a type of image noise that occurs in digital photos or images captured by a camera. A hot pixel refers to a pixel on a camera sensor that appears much brighter than surrounding pixels even in the absence of light, and these hot pixels create unwanted artifacts in the image.

[0004] Therefore, to reduce hot pixel noise that occurs when the camera operates at high temperatures, it is necessary to cool the camera using a cooling fan.

[0005] However, since cooling fans rotate by driving a motor, vibration is inevitable due to eccentricity, and this vibration significantly affects the camera's precision. In particular, as inspection accuracy and precision have recently increased and pixel sizes have become smaller, the impact of vibration caused by cooling fans is becoming even greater.

[0006] Therefore, in order to minimize the impact of cooling fan vibrations on the inspection image, a vibration reduction device is required to prevent cooling fan vibrations from being transmitted to the camera body. Prior art literature

[0007] 1. Korean Registered Patent Publication No. 10-0978402 (Registration Date: August 20, 2010) The problem to be solved

[0008] The present invention aims to provide a cooling fan vibration reduction device for a camera module that prevents vibrations of a cooling fan for cooling a camera module from being transmitted to the camera module, in order to solve the above-mentioned problems.

[0009] In addition, the present invention aims to provide a cooling fan vibration reduction device for a camera module that can be easily assembled and installed on a camera module. means of solving the problem

[0010] The objective of the present invention as described above can be achieved by a cooling fan vibration reduction device for a camera module comprising: a lower block fixed to a camera module; a cooling fan disposed on the upper part of the lower block; a lower spring provided between the lower block and the lower part of the cooling fan; an upper block disposed on the upper part of the cooling fan; an upper spring provided between the upper part of the cooling fan and the upper block; and a cover fixed to the upper part of the upper block.

[0011] Here, a lower fan block coupled to the lower part of the cooling fan and an upper fan block coupled to the upper part of the cooling fan may be further provided.

[0012] Furthermore, the lower block and the lower fan block are formed with an insertion groove or an insertion projection into which the lower spring is inserted to maintain a fluid state, and

[0013] The lower block and the lower fan block may be prevented from coming into contact with each other by the lower spring inserted into the insertion groove or insertion projection.

[0014] Meanwhile, when the insertion groove is formed in the lower block, the inner diameter of the insertion groove is larger than the outer diameter of the lower part of the lower spring, and when the insertion projection is formed in the lower block, the outer diameter of the insertion projection is smaller than the outer diameter of the lower part of the lower spring.

[0015] When the insertion groove is formed in the lower fan block, the inner diameter of the insertion groove is larger than the outer diameter of the upper part of the lower spring, and when the insertion projection is formed in the lower fan block, the outer diameter of the insertion projection may be smaller than the outer diameter of the upper part of the lower spring.

[0016] In addition, when the insertion groove is formed in the lower block, a coupling groove may be formed at the lower part of the insertion groove of the lower block to which a fixing member for fixing the lower block to the camera module is coupled.

[0017] Furthermore, the upper fan block and the upper block have an insertion groove or an insertion projection formed therein, into which the upper spring is inserted to maintain a fluid state, and

[0018] The upper fan block and the upper block may be prevented from contacting each other by the upper spring inserted into the insertion groove or insertion projection.

[0019] In addition, when the insertion groove is formed in the upper fan block, the inner diameter of the insertion groove is larger than the outer diameter of the lower part of the upper spring, and when the insertion projection is formed in the upper fan block, the outer diameter of the insertion projection is smaller than the outer diameter of the lower part of the lower spring.

[0020] When the insertion groove is formed in the upper block, the inner diameter of the insertion groove is larger than the outer diameter of the upper part of the upper spring, and when the insertion projection is formed in the upper block, the outer diameter of the insertion projection may be smaller than the outer diameter of the upper part of the upper spring.

[0021] Meanwhile, when the insertion groove is formed in the upper block, a coupling groove may be formed on the upper part of the insertion groove of the upper block to which a fixing member for fixing the cover to the upper block is coupled.

[0022] Additionally, the cover may include an upper surface portion fixed to the upper block and a side portion extending downward from the upper surface portion and fixed to the side of the lower block.

[0023] In this case, a coupling hole may be formed longitudinally on the side portion of the cover, into which a fixing member for fixing the cover to the side of the lower block is coupled.

[0024] Furthermore, the lower block may be integrally formed with the camera module.

[0025] In addition, the objective of the present invention as described above can be achieved by a cooling fan vibration reduction device for a camera module comprising a cover, a cooling fan disposed inside the cover, a lower spring provided in a flexible state between the lower part of the cooling fan and the camera module to absorb vibrations of the cooling fan, and an upper spring provided in a flexible state between the upper part of the cooling fan and the cover to absorb vibrations of the cooling fan.

[0026] Here, the vibration reduction device further comprises a lower block fixed to the camera module, an upper block disposed on the upper part of the cooling fan module, a lower fan block coupled to the lower part of the cooling fan, and an upper fan block coupled to the upper part of the cooling fan.

[0027] An insertion groove or insertion projection is formed in the upper part of the lower block and the lower part of the lower fan block so that the lower spring can be inserted to maintain a flexible state, and

[0028] An insertion groove or insertion projection is formed in the upper part of the upper fan block and the lower part of the upper block so that the upper spring can be inserted to maintain a flexible state, and

[0029] The above cover includes an upper surface portion fixed to the upper part of the upper block and a side portion extending downward from the upper surface portion and fixed to the side of the lower block.

[0030] The lower spring and the upper spring can maintain a fluid state without detaching from the insertion groove or insertion projection as the upper surface of the cover is fixed to the upper part of the upper block and the side part of the cover is fixed to the side of the lower block.

[0031] Furthermore, a coupling hole may be formed longitudinally on the side portion of the cover, into which a fixing member for fixing the cover to the side of the lower block is coupled.

[0032] Meanwhile, the vibration reduction device further includes a lower block fixed to the camera module and an upper block coupled to the upper part of the cooling fan.

[0033] An insertion groove or insertion projection is formed in the upper part of the lower block and the lower part of the cooling fan so that the lower spring can be inserted to maintain a flexible state, and

[0034] An insertion groove or insertion projection is formed in the upper part of the cooling fan and the lower part of the upper block so that the upper spring can be inserted to maintain a movable state, and

[0035] The above cover includes an upper surface portion fixed to the upper part of the upper block and a side portion extending downward from the upper surface portion and fixed to the side of the lower block.

[0036] The lower spring and the upper spring can maintain a flexible state without detaching from the insertion groove as the upper surface of the cover is fixed to the upper part of the upper block and the side part of the cover is fixed to the side of the lower block.

[0037] Furthermore, a coupling hole may be formed longitudinally on the side portion of the cover, into which a fixing member for fixing the cover to the side of the lower block is coupled.

[0038] Meanwhile, the upper spring and the lower spring may be formed in a shape where the outer diameters of the upper and lower parts are smaller than the outer diameter of the center part.

[0039] In addition, the lower block may be integrally formed with the camera module. Effects of the invention

[0040] According to a vibration reduction device for a camera module cooling fan according to one embodiment of the present invention having the above-described configuration, vibration of a cooling fan for cooling a camera module can be prevented from being transmitted to the camera module.

[0041] In particular, according to an embodiment of the present invention, a vibration reduction device for a camera module cooling fan, by arranging a spring that reduces the vibration of the cooling fan to float flexibly rather than being fixed to the lower and upper parts of the cooling fan, can prevent the vibration of the cooling fan from being transmitted to the camera module.

[0042] In addition, according to one embodiment of the present invention, the cooling fan vibration reduction device for a camera module includes four blocks and one cover, thereby making the assembly and vibration absorption performance uniform, and allowing it to be easily assembled and installed on one side of the camera module.

[0043] The effects according to the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the claims and the description in detail. Brief explanation of the drawing

[0044] FIG. 1 is a perspective view showing a state in which a vibration reduction device according to one embodiment of the present invention is installed on a camera module. FIG. 2 is a cross-sectional perspective view of the vibration reduction device according to FIG. 1 in a vertically cut state. FIG. 3 is a schematic vertical cross-sectional view of a vibration reduction device according to FIG. 1, Fig. 4 is an enlarged view of section 'A' of Fig. 3. FIG. 5 is a perspective view showing a vibration reduction device with the cover removed. FIG. 6 is a drawing showing the state of fixing the lower block to the camera module and assembling the lower spring and lower fan block thereon. Figure 7 is a drawing showing the state of fixing the cover. Specific details for implementing the invention

[0045] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention.

[0046] While the present invention allows for various modifications and variations, specific embodiments are illustrated in the drawings and will be described in detail below. However, it is not intended to limit the invention to the particular forms disclosed, but rather the invention includes all modifications, equivalents, and substitutions consistent with the spirit of the invention as defined by the claims.

[0047] Additionally, in the attached drawings, the thickness and size are exaggerated for clarity of the specification, and therefore the present invention is not limited by the relative size or thickness shown in the attached drawings.

[0048] Additionally, relative terms such as 'upper,' 'lower,' 'upper surface,' 'side,' etc. in this specification may be used to describe the relationship between components based on the direction shown in the drawings, and the invention is not limited by such terms.

[0049] FIG. 1 is a perspective view showing a state in which a vibration reduction device according to an embodiment of the present invention is installed on a camera module, FIG. 2 is a cross-sectional perspective view of the vibration reduction device according to FIG. 1 in a vertically cut state, FIG. 3 is a schematic vertical cross-sectional view of the vibration reduction device according to FIG. 1, FIG. 4 is an enlarged view of part 'A' of FIG. 3, and FIG. 5 is a perspective view showing a vibration reduction device with the cover removed.

[0050] As shown in FIG. 1, a cooling fan vibration reduction device (10) for a camera module according to one embodiment of the present invention can be fixedly installed on one side of a camera module (1).

[0051] For example, the vibration reduction device (10) may be fixedly installed so that a cooling fan (31) for cooling the camera module (1) faces the cooling fin (2) of the camera module (1).

[0052] Referring to FIGS. 1 to 5, the vibration reduction device (10) may include a cover (20), a cooling fan (30) disposed inside the cover (20), a lower spring (40) provided between the lower part of the cooling fan (30) and the camera module (1) to absorb vibration of the cooling fan (30), and an upper spring (50) provided between the upper part of the cooling fan (30) and the cover (20) to absorb vibration of the cooling fan (30).

[0053] In this way, when the cooling fan (30) is placed inside the cover (20) with the cooling fan (30) positioned between the lower spring (40) and the upper spring (50), vibrations generated by the cooling fan (30) can be effectively absorbed by the lower spring (40) and the upper spring (50) provided at the upper and lower parts of the cooling fan (30).

[0054] At this time, the lower spring (40) may be provided to maintain a state of being movably floating rather than fixed between the lower part of the cooling fan (30) and the camera module (1), and the upper spring (50) may be provided to maintain a state of being movably floating rather than fixed between the upper part of the cooling fan (30) and the cover (20).

[0055] Then, compared to the case where the lower spring (40) and the upper spring (50) are provided in a fixed state, the vibration generated from the cooling fan (30) can be absorbed more effectively, and accordingly, the vibration generated from the cooling fan (30) is hardly transmitted to the camera module (1).

[0056] Additionally, the vibration reduction device (10) may further include a lower block (60) fixed to the camera module (1), an upper block (70) positioned above the cooling fan (30), a lower fan block (80) coupled to the lower part of the cooling fan (30), and an upper fan block (90) coupled to the upper part of the cooling fan (30).

[0057] At this time, the lower spring (40) may be provided in a movable state between the lower block (60) and the lower fan block (80), the upper spring (50) may be provided in a movable state between the upper fan block (90) and the upper block (70), and the cover (20) may be fixed to the upper block (70) and the lower block (60).

[0058] In this way, if the vibration reduction device (10) further includes the four blocks (lower block (60), upper block (70), lower fan block (80), upper fan block (90)) together with the cover (20), the assembly and vibration absorption performance can be made uniform, and it can be easily installed on the camera module (1).

[0059] In another embodiment, the lower block (60) may not be fixed to the camera module (1) as a separate component, but rather the shape of the lower block (60) may be directly formed integrally (e.g., one-body) with the camera module (1), and the present invention is not limited thereto.

[0060] Meanwhile, an insertion groove (61, 81) into which the lower spring (40) is inserted may be formed in the upper part of the lower block (60) and the lower part of the lower fan block (80).

[0061] Then, the lower spring (40) can be easily placed between the lower block (60) and the lower fan block (80).

[0062] At this time, the lower spring (40) can be provided so that the lower block (60) and the lower fan block (80) are separated by a predetermined distance without contacting each other while the lower spring (40) is inserted into the insertion groove (61, 81).

[0063] For example, the lower part of the lower spring (40) is inserted into the insertion hop (61) of the lower block (60), and the upper part of the lower spring (40) is inserted into the insertion hop (81) of the lower fan block (80). In this state, the lower block (60) and the lower fan block (80) can be separated by a predetermined distance without contacting each other, and the rigidity, length, elasticity, etc. of the lower spring (40) can be formed accordingly.

[0064] At this time, the rigidity and elasticity of the lower spring (40) must be able to support the weight of the upper structures (e.g., the lower fan block (80), the cooling fan (30), the upper fan block (90), the upper block (70), etc.) supported by the lower spring (40), and furthermore, must be able to effectively absorb the vibration of the cooling fan (30).

[0065] For example, if the stiffness and elasticity of the lower spring (40) are too excessive, the vibration of the cooling fan (30) is not absorbed and is transmitted to the camera module (1), and if the stiffness and elasticity of the lower spring (40) are too weak, the lower block (60) and the lower fan block (80) come into contact with each other, and the vibration of the cooling fan (30) is transmitted to the camera module (1) as is.

[0066] The above insertion grooves (61, 81) can be formed so that the lower spring (40) is inserted and can maintain a flexible state.

[0067] For example, the inner diameter of the insertion groove (61) of the lower block (60) may be larger than the outer diameter of the lower part of the lower spring (40), and the inner diameter of the insertion groove (81) of the lower fan block (80) may be formed to be larger than the outer diameter of the upper part of the lower spring (40).

[0068] Then, as shown in FIG. 4, a predetermined gap (67) may be formed between the lower part of the lower spring (40) and the insertion groove (61) of the lower block (60), and accordingly, the lower part of the lower spring (40) may be inserted into the insertion groove (61) of the lower block (60) and maintain a flexible state. Likewise, a predetermined gap (83) may be formed between the upper part of the lower spring (40) and the insertion groove (81) of the lower fan block (80), and accordingly, the upper part of the lower spring (40) may be inserted into the insertion groove (81) of the lower fan block (80) and maintain a flexible state.

[0069] In this way, when the upper and lower parts of the lower spring (40) are maintained in a fluid state and can absorb the vibration of the cooling fan (30), the vibration generated by the cooling fan (30) can be absorbed more effectively compared to when the upper and lower parts of the lower spring (40) are forcibly fitted into the insertion grooves (61, 81) or fixed to the lower block (60) and the lower fan block (80), and accordingly, the vibration generated by the cooling fan (30) is hardly transmitted to the camera module (1).

[0070] In another embodiment, an insertion projection into which the lower spring (40) is inserted may be formed on the upper part of the lower block (60) and the lower part of the lower fan block (80).

[0071] In this case, the outer diameter of the insertion projection of the lower block (60) may be smaller than the outer diameter of the lower part of the lower spring (40) and the outer diameter of the insertion projection of the lower fan block (80) may be smaller than the outer diameter of the upper part of the lower spring (40) so that the lower spring (40) can be inserted into the insertion projection and maintain a fluid state.

[0072] In another embodiment, an insertion groove may be formed on the upper part of the lower block (60) and an insertion projection may be formed on the lower part of the lower fan block (80), or conversely, an insertion projection may be formed on the upper part of the lower block (60) and an insertion groove may be formed on the lower part of the lower fan block (80).

[0073] Additionally, the lower spring (40) may be provided in four places at the corners of the lower block (60) and the lower fan block (80) so as to stably support upper structures such as the lower fan block (80), the cooling fan (30), the upper fan block (90), and the upper block (70), and stably absorb vibrations of the cooling fan (30), but is not limited thereto.

[0074] To this end, four insertion grooves (61) of the lower block (60) and four insertion grooves (81) of the lower fan block (80) may be formed at each corner, but are not limited thereto.

[0075] Meanwhile, when the insertion groove (61) is formed in the lower block (60), a coupling groove (63) may be formed in the lower part of the insertion groove (61) of the lower block (60) to which a fixing member (62) for fixing the lower block (60) to the camera module (1) is coupled.

[0076] Then, by positioning the lower block (60) on the camera module (1) and connecting the fixing member (62) to the camera module (1) through the connecting groove (63), the lower block (60) can be easily fixed to the camera module (1).

[0077] In particular, since a large through hole (65) through which air generated by the cooling fan (30) passes is formed in the center of the lower block (60), the only location to form the insertion groove (61) and the coupling groove (63) is the corner. If the insertion groove (61) and the coupling groove (63) are formed by overlapping them vertically at the corner, the insertion groove (61) and the coupling groove (63) can be easily formed in a narrow corner space.

[0078] At this time, as shown in FIG. 4, the head (64) of the fixed member (62) may have a size smaller than the lower outer diameter of the lower spring (40).

[0079] Then, when the lower part of the lower spring (40) is inserted into the insertion groove (61) after the fixing member (62) is coupled to the coupling groove (63), the lower part of the lower spring (40) can maintain a fluid state without overlapping with the head (64) of the fixing member (62), so the lower spring (40) can support the upper structures more stably and absorb the vibration of the cooling fan (30).

[0080] However, the present invention is not limited thereto, and the head (64) of the fixing member (62) can be coupled inside the coupling groove (63) as long as the size of the head (64) is smaller than the inner diameter of the insertion groove (61) of the lower block (60).

[0081] Meanwhile, an insertion groove (71, 91) into which the upper spring (50) is inserted may be formed in the lower part of the upper block (70) and the upper part of the upper fan block (90).

[0082] Then, the upper spring (50) can be easily placed between the upper block (70) and the upper fan block (90).

[0083] At this time, the upper spring (50) can be provided such that, while inserted into the insertion groove (71, 91), the upper block (70) and the upper fan block (90) are separated by a predetermined distance without coming into contact with each other.

[0084] For example, the lower part of the upper spring (50) is inserted into the insertion hop (91) of the upper fan block (90), and the upper part of the upper spring (50) is inserted into the insertion hop (71) of the upper block (70). In this state, the upper block (70) and the upper fan block (90) can be separated by a predetermined distance without contacting each other, and the stiffness, length, elasticity, etc. of the upper spring (40) can be formed accordingly.

[0085] At this time, the stiffness and elasticity of the upper spring (50) must be able to support the weight of the upper block (70) supported by the upper spring (50), and furthermore, must be able to effectively absorb the vibration of the cooling fan (30).

[0086] For example, if the stiffness and elasticity of the upper spring (50) are too strong, the vibration of the cooling fan (30) is not absorbed and is transmitted to the camera module (1) through the upper block (70), and if the stiffness and elasticity of the upper spring (50) are too weak, the vibration of the cooling fan (30) is transmitted to the camera module (1) through the upper block (70) as is, as the upper block (70) and the upper fan block (90) come into contact with each other.

[0087] The above insertion groove (71, 91) can be formed so that the upper spring (40) is inserted and can maintain a flexible state.

[0088] For example, the inner diameter of the insertion groove (71) of the upper block (70) may be larger than the outer diameter of the upper part of the upper spring (50), and the inner diameter of the insertion groove (91) of the upper fan block (90) may be formed to be larger than the outer diameter of the lower part of the upper spring (50).

[0089] Then, the upper part of the upper spring (50) can be inserted into the insertion hop (71) of the upper block (70) to maintain a flexible state, and the lower part of the upper spring (50) can be inserted into the insertion hop (91) of the upper fan block (90) to maintain a flexible state.

[0090] In this way, when the upper and lower parts of the upper spring (50) are maintained in a fluid state and can absorb the vibration of the cooling fan (30), the vibration generated by the cooling fan (30) can be absorbed more effectively compared to when the upper and lower parts of the upper spring (50) are forcibly fitted into the insertion grooves (71, 91) or fixed to the upper block (70) and the upper fan block (90), and accordingly, the vibration generated by the cooling fan (30) is hardly transmitted to the camera module (1).

[0091] In another embodiment, an insertion projection into which the upper spring (50) is inserted may be formed on the upper part of the upper fan block (90) and the lower part of the upper block (70).

[0092] In this case, the outer diameter of the insertion projection of the upper fan block (90) may be smaller than the outer diameter of the lower part of the upper spring (50) and the outer diameter of the insertion projection of the upper block (70) may be smaller than the outer diameter of the upper part of the upper spring (50) so that the upper spring (50) can be inserted and maintained in a fluid state.

[0093] In another embodiment, an insertion groove may be formed on the upper part of the upper fan block (90) and an insertion projection may be formed on the lower part of the upper block (70), or conversely, an insertion projection may be formed on the upper part of the upper fan block (90) and an insertion groove may be formed on the lower part of the upper block (70).

[0094] Additionally, the upper spring (50) may be provided in four places at the corners of the upper block (70) and the upper fan block (90) so as to stably support the upper block (70) and stably absorb vibrations of the cooling fan (30), but is not limited thereto.

[0095] To this end, four insertion grooves (71) of the upper block (70) and four insertion grooves (91) of the upper fan block (90) may be formed at each corner, but are not limited thereto.

[0096] FIG. 5 shows a vibration reduction device (10) with the cover (20) removed. As shown in FIG. 4, the cooling fan (30) can be stably supported by the configuration of the four blocks, namely the lower block (60), the lower fan block (80), the upper fan block (90), and the upper block (70), and the lower spring (40) and the upper spring (50), and vibrations generated by the cooling fan (30) can be effectively absorbed.

[0097] Meanwhile, the cover (20) can be fixed to the upper block (70) and the lower block (60). In this way, when the cover (20) is fixed to the upper block (70) and the lower block (60), the lower spring (40) and the upper spring (50) can maintain a stable, movable state without detaching from the insertion groove or insertion projection, even if they are inserted into the insertion groove or insertion projection in a movable state.

[0098] Additionally, a coupling groove (73) may be formed on the upper part of the insertion groove (71) of the upper block (70) to which a fixing member (22) for fixing the cover (20) to the upper block (70) is coupled.

[0099] Then, by connecting the cover (20) to the upper block (70) through the connecting groove (73) and the fixing member (22), the cover (20) can be easily fixed to the upper block (70).

[0100] In particular, since a large through hole (75) through which air generated by the cooling fan (30) passes is formed in the center of the upper block (70), the only location to form the insertion groove (71) and the coupling groove (73) is the corner. If the insertion groove (71) and the coupling groove (73) are formed by overlapping them vertically at the corner, the insertion groove (71) and the coupling groove (73) can be easily formed in a narrow corner space.

[0101] The above cover (20) may include an upper surface portion (21) fixed to the upper block (70) and a side portion (23) extending downward from the upper surface portion (21) and fixed to the side of the lower block (60).

[0102] A coupling hole (24) is formed in the side portion (23) of the cover (20) to which a fixing member (25) for fixing the cover (20) to the side of the lower block (60) is coupled, and a coupling hole (66) to which the fixing member (25) is coupled may be formed in the side of the lower block (60).

[0103] At this time, as shown in FIGS. 1 and 2, the coupling hole (24) formed in the side portion (23) of the cover (20) can be formed to be long in the vertical direction.

[0104] Then, when the side portion (23) of the cover (20) is fixed to the side of the lower block (60), the degree to which the upper portion (21) of the cover (20) presses the upper block (70) can be adjusted, thereby allowing the degree of compression of the lower spring (40) and the upper spring (50) to be adjusted.

[0105] A cooling fan vibration reduction device (10) for a camera module having the configuration described above can be easily assembled and installed on one side of the camera module (1).

[0106] The process of assembling the above vibration reduction device (10) to the above camera module (1) and installing it is described in detail with reference to the drawing.

[0107] FIG. 6 is a drawing showing the state of fixing the lower block to the camera module and assembling the lower spring and lower fan block thereon, and FIG. 7 is a drawing showing the state of fixing the cover.

[0108] First, as shown in FIG. 6, the lower block (60) can be fixed to the camera module (1) by positioning the lower block (60) on one side of the camera module (1) and then connecting the fixing member (62) to the camera module (1) through the coupling groove (63).

[0109] Afterward, the lower part of the lower spring (40) is inserted into the insertion groove (61) of the lower block (60), and the lower fan block (80) can be positioned so that the upper part of the lower spring (40) is inserted into the insertion groove (81) of the lower fan block (80).

[0110] Although only the lower fan block (80) is shown in FIG. 6, the cooling fan (30) and the upper fan block (90) may be placed on the upper part of the lower spring (40) in a pre-coupled state on the upper part of the lower fan block (80), and the present invention is not limited thereto.

[0111] Afterward, the upper block (90) can be positioned so that the lower part of the upper spring (50) is inserted into the insertion groove (91) of the upper fan block (90), and the upper part of the upper spring (50) is inserted into the insertion groove (71) of the upper block (70).

[0112] Afterwards, as shown in FIG. 7, the upper surface (21) of the cover (20) can be fixed to the upper part of the upper block (70) using a fixing member (22), and the cover (20) can be fixed to the side of the lower block (60) by connecting a fixing member (25) to a connecting hole (24) formed in the side part (23) of the cover (20) and a connecting groove (66) formed on the side of the lower block (60).

[0113] At this time, by adjusting the position where the fixing member (25) is fixed in the vertically elongated coupling hole (24), the degree of compression of the lower spring (40) and the upper spring (50) can be adjusted.

[0114] Accordingly, the cooling fan vibration reduction device (10) for a camera module according to one embodiment of the present invention can be easily assembled and installed on the camera module (1) through a simple process as described above.

[0115] Meanwhile, as in the above embodiments, the shape of the lower spring (40) and the upper spring (50) may be formed such that the outer diameter size is the same overall, or the outer diameter size of the upper and lower parts may be smaller than the outer diameter size of the center.

[0116] In this way, if the shape of the lower spring (40) and the upper spring (50) is such that the outer diameter of the upper and lower parts is smaller than the outer diameter of the center (e.g., jar shape), the insertion groove or insertion projection can be formed directly on the cooling fan (30) without the configuration of the lower fan block (80) and the upper fan block (90) in the above embodiment.

[0117] That is, an insertion groove or insertion projection is formed in the lower part of the cooling fan (30) so that the lower spring can be inserted to maintain a fluid state, and an insertion groove or insertion projection is formed in the upper part of the cooling fan so that the upper spring can be inserted to maintain a fluid state.

[0118] At this time, as previously stated, the inner diameter of the insertion groove may be larger than the outer diameter of the upper part of the lower spring (40) or the lower part of the upper spring (50), and the outer diameter of the insertion projection may be smaller than the outer diameter of the upper part of the lower spring (40) or the lower part of the upper spring (50).

[0119] Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may modify and change the present invention in various ways without departing from the spirit and scope of the invention as described in the claims below. Therefore, if a modified embodiment basically includes the components of the claims of the present invention, it should be considered to be included within the technical scope of the present invention. Explanation of the symbols

[0120] 1 : Camera module 2 : Cooling fins 10: Vibration reduction device 20: Cover 30 : Cooling fan 40 : Bottom spring 50 : Upper spring 60 : Lower block 70 : Upper block 80 : Lower fan block 90 : Upper fan block

Claims

Claim 1 A vibration reduction device for a cooling fan of a camera module comprising: a lower block fixed to a camera module; a cooling fan disposed on the upper portion of the lower block; a lower spring disposed between the lower block and the lower portion of the cooling fan; an upper block disposed on the upper portion of the cooling fan; an upper spring disposed between the upper portion of the cooling fan and the upper block; and a cover fixed to the upper portion of the upper block; wherein the cover comprises an upper surface portion fixed to the upper block and a side portion extending downward from the upper surface portion and fixed to the side of the lower block, and wherein a coupling hole is formed longitudinally in the side portion of the cover for coupling to a fixing member that fixes the cover to the side of the lower block. Claim 2 A cooling fan vibration reduction device for a camera module according to claim 1, further comprising a lower fan block coupled to the lower part of the cooling fan and an upper fan block coupled to the upper part of the cooling fan. Claim 3 A cooling fan vibration reduction device for a camera module according to claim 2, wherein the lower block and the lower fan block have an insertion groove or an insertion projection formed therein to allow the lower spring to be inserted and maintain a movable state, and the lower block and the lower fan block are prevented from contacting each other by the lower spring inserted into the insertion groove or the insertion projection. Claim 4 A cooling fan vibration reduction device for a camera module according to claim 3, wherein when the insertion groove is formed in the lower block, the inner diameter of the insertion groove is larger than the outer diameter of the lower part of the lower spring, and when the insertion projection is formed in the lower block, the outer diameter of the insertion projection is smaller than the outer diameter of the lower part of the lower spring, and when the insertion groove is formed in the lower fan block, the inner diameter of the insertion groove is larger than the outer diameter of the upper part of the lower spring, and when the insertion projection is formed in the lower fan block, the outer diameter of the insertion projection is smaller than the outer diameter of the upper part of the lower spring. Claim 5 A cooling fan vibration reduction device for a camera module according to claim 4, characterized in that when the insertion groove is formed in the lower block, a coupling groove is formed in the lower part of the insertion groove of the lower block to which a fixing member for fixing the lower block to the camera module is coupled. Claim 6 A cooling fan vibration reduction device for a camera module according to claim 3, wherein an insertion groove or insertion projection is formed in the upper fan block and the upper block to allow the upper spring to be inserted and maintain a movable state, and the upper fan block and the upper block are prevented from contacting each other by the upper spring inserted into the insertion groove or insertion projection. Claim 7 A cooling fan vibration reduction device for a camera module according to claim 6, wherein when the insertion groove is formed in the upper fan block, the inner diameter of the insertion groove is larger than the outer diameter of the lower part of the upper spring, and when the insertion projection is formed in the upper fan block, the outer diameter of the insertion projection is smaller than the outer diameter of the lower part of the lower spring, and when the insertion groove is formed in the upper block, the inner diameter of the insertion groove is larger than the outer diameter of the upper part of the upper spring, and when the insertion projection is formed in the upper block, the outer diameter of the insertion projection is smaller than the outer diameter of the upper part of the upper spring. Claim 8 A lower block fixed to a camera module; a cooling fan positioned on the upper part of the lower block; a lower spring provided between the lower block and the lower part of the cooling fan; an upper block positioned on the upper part of the cooling fan; and an upper spring provided between the upper part of the cooling fan and the upper block. and a cover fixed to the upper part of the upper block; further comprising a lower fan block coupled to the lower part of the cooling fan and an upper fan block coupled to the upper part of the cooling fan, wherein an insertion groove or insertion projection is formed in the lower block and the lower fan block so that the lower spring can be inserted to maintain a fluid state, and the lower block and the lower fan block are prevented from contacting each other by the lower spring inserted into the insertion groove or insertion projection, and the upper fan block and the upper block are formed with an insertion groove or insertion projection so that the upper spring can be inserted to maintain a fluid state, and the upper fan block and the upper block are prevented from contacting each other by the upper spring inserted into the insertion groove or insertion projection, and when the insertion groove is formed in the upper fan block, the inner diameter of the insertion groove is larger than the outer diameter of the lower part of the upper spring, and when the insertion projection is formed in the upper fan block, the outer diameter of the insertion projection is smaller than the outer diameter of the lower part of the lower spring, and when the insertion groove is formed in the upper block, the A vibration reduction device for a cooling fan of a camera module, characterized in that the inner diameter of the insertion groove is larger than the outer diameter of the upper part of the upper spring, the outer diameter of the insertion projection is smaller than the outer diameter of the upper part of the upper spring when the insertion projection is formed on the upper block, and a coupling groove is formed on the upper part of the insertion groove of the upper block to which a fixing member for fixing the cover to the upper block is coupled. Claim 9 delete Claim 10 delete Claim 11 delete Claim 12 delete Claim 13 delete Claim 14 Cover; a cooling fan disposed on the inner side of the cover; a lower spring provided in a movable state between the lower part of the cooling fan and the camera module to absorb vibrations of the cooling fan; and an upper spring provided in a movable state between the upper part of the cooling fan and the cover to absorb vibrations of the cooling fan; a lower block fixed to the camera module; an upper block disposed on the upper part of the cooling fan; and a lower fan block coupled to the lower part of the cooling fan. A cooling fan vibration reduction device for a camera module comprising: an upper fan block coupled to the upper part of the cooling fan; wherein an insertion groove or insertion projection is formed in the upper part of the lower block and the lower part of the lower fan block to allow the lower spring to be inserted and maintain a fluid state, and an insertion groove or insertion projection is formed in the upper part of the upper fan block and the lower part of the upper block to allow the upper spring to be inserted and maintain a fluid state, and wherein the cover comprises an upper surface portion fixed to the upper part of the upper block and a side portion extending downward from the upper surface portion and fixed to the side of the lower block, wherein the lower spring and the upper spring maintain a fluid state without detaching from the insertion groove or insertion projection as the upper surface portion of the cover is fixed to the upper part of the upper block and the side portion of the cover is fixed to the side of the lower block, and wherein a coupling hole is formed longitudinally in the side portion of the cover to which a fixing member for fixing the cover to the side of the lower block is coupled. Claim 15 delete Claim 16 Cover; a cooling fan disposed inside the cover to cool the camera module; a lower spring provided in a movable state between the lower part of the cooling fan and the camera module to absorb vibrations of the cooling fan; an upper spring provided in a movable state between the upper part of the cooling fan and the cover to absorb vibrations of the cooling fan; a lower block fixed to the camera module; A cooling fan vibration reduction device for a camera module comprising: an upper block coupled to the upper part of the cooling fan; wherein an insertion groove or an insertion projection is formed in the upper part of the lower block and the lower part of the cooling fan to allow the lower spring to be inserted and maintain a movable state; wherein the cover comprises an upper surface portion fixed to the upper part of the upper block and a side portion extending downward from the upper surface portion and fixed to the side of the lower block; wherein the lower spring and the upper spring maintain a movable state without detaching from the insertion groove as the upper surface portion of the cover is fixed to the upper part of the upper block and the side portion of the cover is fixed to the side of the lower block, and a coupling hole is formed in the side portion of the cover in a longitudinal direction to which a fixing member for fixing the cover to the side of the lower block is coupled. Claim 17 A cooling fan vibration reduction device for a camera module according to claim 16, characterized in that the upper spring and the lower spring are formed in a shape such that the outer diameters of the upper and lower parts are smaller than the outer diameter of the center part. Claim 18 delete

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