Imaging device

Abstract

The present invention provides an image pickup apparatus, comprising: a first housing; the second lens module is hung on the side wall of the first shell and is driven by a first driving motor to rotate in a pitching mode around a second axis extending in the horizontal direction, a second shell of the second lens module is arranged on a supporting seat protruding out of the side wall of the first shell through a rotating pair, and a first driving assembly is arranged in the second shell; the braking module comprises a second driving motor which is arranged in the second shell, and an output shaft of the second driving motor penetrates through the second shell in the direction of the second axis; the brake disc assembly is driven by the output shaft to move in a reciprocating mode in the direction of the second axis. The second shell and the supporting base form a gap spaced in the second axis direction, and in response to a braking instruction and / or a stopping signal of the first motor, the braking module is configured to drive the brake disc assembly to make attached contact with the supporting base in the second axis direction, so that the second lens module and the first shell are relatively static.

Description

Technical Field

[0001] The invention relates to a camera device. Background Art

[0002] In a camera device with rotating parts, gear transmission backlash may cause a small angle deviation of the lens, but in actual imaging, this small angle deviation may cause a significant deviation in the angle or position of the image.

[0003] For example, combined with Figure 1 As can be seen from Table 1, according to the angular deviation caused by the hanging height of 5.8m and the tooth gap of 0.1°, the observation distance deviation is 1.89m when the observation distance is 80m; the observation distance deviation is 3.11m when the observation distance is 100m; and the observation distance deviation is 12.82m when the observation distance is 200m.

[0004] Table 1

[0005] Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a camera device, which provides a braking module in the rotating part, which can fix the relative position between the rotating part and the stationary part when the rotating part stops rotating, thereby avoiding position deviation of the rotating part caused by gear transmission tooth gap.

[0007] In one embodiment of the present invention, a camera device is provided, comprising:

[0008] a first housing defining a first axis extending in a longitudinal direction;

[0009] a second lens module, the second lens module is hung on the side wall of the first housing, and is driven by a first driving motor to pitch and rotate around a second axis extending in the horizontal direction, wherein the second housing of the second lens module is mounted on a support seat protruding from the side wall of the first housing through a rotating pair, and the first driving assembly is mounted in the second housing;

[0010] A brake module, comprising:

[0011] a second drive motor, the second drive motor being installed in the second housing, and an output shaft of the second drive motor passing through the second housing along the direction of the second axis; and

[0012] a brake disc assembly, the brake disc assembly being mounted on the end of the output shaft so as to reciprocate along the direction of the second axis under the drive of the output shaft;

[0013] Wherein, the second housing and the support seat form a gap spaced along the second axis direction, and the brake disc assembly is located in the gap;

[0014] In response to a braking command and / or a stop signal of the first motor, the braking module is configured to: drive the brake disc assembly to be in contact with the support seat along the direction of the second axis, so that the second lens module and the first shell are relatively stationary.

[0015] In one embodiment, the second housing includes a first side wall and a second side wall that are oppositely disposed, the first side wall is rotatably connected to the support base via a first rotation pair, the second side wall is rotatably connected to the support base via a second rotation pair, and the first rotation pair and the second rotation pair define the second axis;

[0016] Wherein, the first driving motor is adjacent to the first side wall to drive the second lens module to pitch and rotate around the second axis through the first rotation pair;

[0017] The second driving motor is adjacent to the second side wall, and an output shaft of the second driving motor passes through the second side wall.

[0018] In one embodiment, the second lens module includes:

[0019] A support plate is connected between the first side wall and the second side wall from the outside of the second shell to balance the second shell.

[0020] In one embodiment, the brake disc assembly comprises:

[0021] a push rod mounted on an end of the output shaft; and

[0022] A brake disc, wherein the brake disc is integrally connected to the support seat;

[0023] The push rod comprises:

[0024] a first rod portion, the first rod portion being mounted on an end portion of the output shaft and penetrating the second housing;

[0025] The second rod portion extends radially outward from the end of the first rod portion, and the second rod portion is used to fit in contact with the brake disc so that the second lens module and the first shell are relatively stationary.

[0026] In one embodiment, the second housing has a shaft hole for the output shaft to pass through;

[0027] The brake disc assembly comprises a bushing sleeved on the outside of the first rod portion, and the bushing is clamped between the first rod portion and the shaft hole;

[0028] Wherein, the diameter of the shaft hole is larger than the diameter of the first rod portion, and the bushing is interference fit with the shaft hole;

[0029] One end of the bushing forms a step portion axially limited to the outer surface of the second housing.

[0030] In one embodiment, the brake disc assembly comprises:

[0031] A first sealing ring is sleeved on the outside of the first rod portion and is limited to be located between the step portion and the second rod portion to seal the shaft hole.

[0032] In one embodiment, the brake disc assembly comprises:

[0033] A second sealing ring, wherein the second sealing ring is sleeved outside the first rod portion and is located between the bushing and the first rod portion;

[0034] The first rod portion has a sealing groove for accommodating the second sealing ring.

[0035] In one embodiment, the first rod portion is threadedly connected to the end of the output shaft, and the output shaft rotates under the drive of the second drive motor;

[0036] The brake disc assembly comprises:

[0037] A guide rod is connected between the second housing and the second rod portion and extends along the second axis direction to limit the push rod to move linearly along the second axis direction under the drive of the output shaft.

[0038] In one embodiment, the first end of the guide rod is fixed to the second shell, and the second end is passed through the second rod portion.

[0039] In one embodiment, in the longitudinal direction, the first drive motor and the second drive motor are respectively located on both sides of the second axis.

[0040] Wherein, the height of the first driving motor is higher than the second axis, and the height of the second driving motor is lower than the second axis.

[0041] In one embodiment, the second lens module includes:

[0042] A lens, which is installed in the second housing and takes pictures through the front surface of the second housing, and in the longitudinal direction, the height of the lens is higher than the second axis;

[0043] A radar module is disposed in the second shell and photographed through the front surface of the second shell. In the longitudinal direction, the height of the radar module is lower than the second axis.

[0044] It can be seen from the above technical solution that this embodiment provides a brake module 40 for the second lens module 20, which is used to fix the relative position of the rotatable part (the second lens module 20) with respect to the fixed part (the first shell 10), so that when the first driving assembly 30 stops, the second lens module 20 and the first shell 10 are relatively stationary, thereby eliminating the shaking of the second lens assembly 20 at the rest position caused by the gear gap.

[0045] The first sealing ring 424 is sealed between the step portion 4231 and the second rod portion 4212 from the outside of the second shell 21. When the push rod 421 moves linearly along the direction of the second axis L2, it is always sealed between the step portion 4231 and the second rod portion 4212 to seal the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 from the outer end (step portion 4231) of the bushing 423.

[0046] The sealing groove 4213 is used to accommodate the second sealing ring 425, but the depth of the sealing groove 4213 is less than the thickness of the second sealing ring 425, so that the second sealing ring 425 can protrude from the outer surface of the first rod portion 4211, thereby filling the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423. When the push rod 421 slides relative to the bushing 423, the second sealing ring 425 will be restricted in the sealing groove 4213 to always seal the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 from the inside of the bushing 423. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The following drawings are only used to schematically illustrate and explain the present invention, and do not limit the scope of the present invention.

[0048] Figure 1 It is a schematic diagram of imaging deviation caused by tooth gap in an existing camera device.

[0049] Figure 2 It is a schematic structural diagram of the camera device of the present invention.

[0050] Figure 3a and Figure 3b It is a state schematic diagram of the brake module of the camera device of the present invention.

[0051] Figure 4 It is a partial exploded schematic diagram of the camera device of the present invention.

[0052] Figure 5 It is a partial cross-sectional view of the imaging device of the present invention. DETAILED DESCRIPTION

[0053] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific embodiments of the invention are now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0054] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0055] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0056] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0057] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0058] In this article, "equal", "same" and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use. Unless otherwise specified, the numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0059] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0060] In order to solve the problems in the prior art, the present invention provides a camera device, which provides a braking module in the rotating part, which can fix the relative position between the rotating part and the stationary part when the rotating part stops rotating, thereby avoiding position deviation of the rotating part caused by gear transmission tooth gap.

[0061] Figure 2 It is a schematic structural diagram of the camera device of the present invention. Figure 3a and Figure 3b Schematic diagram of the state of the brake module of the camera device of the present invention. Figure 2 and Figure 3a As shown, an embodiment of the present invention provides a camera device, comprising:

[0062] A first housing 10, the first housing 10 defines a first axis L1 extending in a longitudinal direction;

[0063] The second lens module 20 is hung on the side wall of the first housing 10, and is driven by the first driving motor 30 to pitch and rotate around a second axis L2 extending in the horizontal direction, wherein the second housing 21 of the second lens module 20 is mounted on a support seat 11 protruding from the side wall of the first housing 10 through a rotating pair 22, and the first driving assembly 30 is mounted in the second housing 21;

[0064] Braking module 40, the braking module 40 comprises:

[0065] A second drive motor 41, the second drive motor 41 is installed in the second housing 21, and an output shaft 41a of the second drive motor 41 passes through the second housing 21 along a direction parallel to the second axis L2; ​​and

[0066] A brake disc assembly 42, the brake disc assembly 42 is mounted at the end of the output shaft 41a, so as to reciprocate along the direction of the second axis L2 under the drive of the output shaft 41a;

[0067] The second housing 21 and the support seat 11 form a gap spaced along the second axis L2, and the brake disc assembly 42 is located in the gap;

[0068] In response to the braking command and / or the stop signal of the first motor 30 , the braking module 40 is configured to: drive the brake disc assembly 42 to fit in contact with the support seat 11 along the second axis L2 direction, so that the second lens module 20 and the first shell 10 are relatively stationary.

[0069] In this embodiment, the camera device can be implemented as a ball camera with a ring-moving gun, wherein the first housing 10 is implemented as a main body part for carrying the ball camera and the gun, which is fixed to a carrier and is generally defined as a fixing member. The second lens module 20 is implemented as a gun mounted on the first housing 10, which can be pitched and rotated relative to the first housing 10. Furthermore, the first housing 10 can also carry a ball camera fixed relative to the first housing 10.

[0070] The second lens module 20 is driven by the first drive assembly 30, and is supported by the rotating pair 22 to pitch and rotate around the second axis L2. The transmission between the first drive assembly 30 and the rotating pair 22 adopts gear transmission. When the first drive assembly 30 stops so that the second lens assembly 20 stays at a certain angle, the gear gap may cause the second lens assembly 20 to shake at the stop position by an interval equal to the gear gap. Although the absolute value of the gear gap is small, under the weighting of parameters such as lens magnification and shooting distance, it may cause the position deviation of the second lens assembly 20 to be very large during actual imaging.

[0071] To address this problem, the present embodiment provides a brake module 40 for the second lens module 20, which is used to fix the relative position of the rotatable part (the second lens module 20) with respect to the fixed part (the first housing 10), so that when the first driving assembly 30 stops, the second lens module 20 and the first housing 10 are relatively stationary, thereby eliminating the shaking of the second lens assembly 20 at the rest position caused by the gear clearance.

[0072] The position of the brake module 40 deviates from the position of the rotating pair 22 so that a larger braking torque can be applied to the first shell 10 with a smaller braking force, which is beneficial to fix the position of the second lens module 20 and reduce the volume occupied by the brake module 40.

[0073] In this embodiment, the brake module 40 includes a second drive motor 41 and a brake disc assembly 42 driven by the second drive motor 41, wherein the brake disc assembly 42 moves linearly along the direction of the second axis L2 to Figure 3a As shown, when in contact with the support seat 11, it is connected between the second shell 21 and the support seat 11, so that the second shell 21 and the first shell 10 are relatively stationary, so as to achieve the purpose of making the second lens module 20 and the first shell 10 relatively stationary.

[0074] In this embodiment, although the brake disc assembly 42 moves linearly along the direction of the second axis L2 driven by the output shaft 41a of the second drive motor 41, the second drive motor 41 is not limited to a linear motor, and the output shaft 41a is not limited to moving linearly along the direction of the second axis L2. The second drive motor 41 can be selected as a linear motor or a rotary motor, and the movement mode of the brake disc assembly 42 can be limited by the connection structure between the brake disc assembly 42 and the output shaft 41a.

[0075] As described above, the brake disc assembly 42 moves linearly along the direction of the second axis L2 to Figure 3a When the second housing 21 is in contact with the support seat 11, the second housing 21 is connected between the second housing 21 and the support seat 11, so that the second housing 21 and the first housing 10 are relatively stationary, so as to achieve the purpose of making the second lens module 20 and the first housing 10 relatively stationary. Figure 3b As shown, when the contact with the support base 11 is lost, the positional relationship in which the second shell 21 and the support base 11 are connected as one body is released, thereby releasing the lock of the second lens module 20 and the first shell 10, so that the second lens module 20 is in a state in which it can pitch and rotate relative to the first shell 10 under the drive of the first drive motor 30.

[0076] Among them, the brake module 40 in this embodiment is used to eliminate the error caused by the backlash when the transmission structure is in a stationary state. Therefore, the first drive motor 31 and the second drive motor 41 do not work at the same time. The start of the second drive motor 41 can respond to the stop signal of the first drive motor 31 or the brake command issued by the user or the controller. When the second drive motor 41 starts in response to the brake command, the first drive motor 31 must be in a stopped state. The start of the first drive motor 31 can also respond to the stop signal of the second drive motor 41 or the start command issued by the user or the controller. When the first drive motor 31 starts in response to the start command, the second drive motor 41 must be in a stopped state.

[0077] Specifically, Figure 2 and Figure 4 As shown, the second housing 21 includes a first side wall 21a and a second side wall 21b that are oppositely arranged, the first side wall 21a is rotatably connected to the support seat 11 through a first rotation pair 22a, and the second side wall 21b is rotatably connected to the support seat 11 through a second rotation pair 22b, and the first rotation pair 22a and the second rotation pair 22b define a second axis L2;

[0078] The first driving motor 30 is adjacent to the first side wall 21a, so as to drive the second lens module 20 to pitch and rotate around the second axis L2 through the first rotating pair 22a;

[0079] The second driving motor 41 is adjacent to the second side wall 21 b , and an output shaft 41 a of the second driving motor 41 passes through the second side wall 21 b .

[0080] In this example, the first drive motor 30 for driving the pitch rotation of the first shell 21 relative to the first shell 10 is selectively connected to one rotating pair 22, such as the first rotating pair 22a located on the first side wall 21a, and the brake module 40 for fixing the position of the first shell 21 relative to the first shell 10 is arranged at another rotating pair 22, such as the second rotating pair 22b located on the second side wall 21b, so as to brake the first shell 21 from the side of the second side wall 21b.

[0081] The height of the first driving motor 30 is higher than the second axis L2 , and the height of the second driving motor 41 is lower than the second axis L2 .

[0082] Specifically, the second lens module 20 includes:

[0083] The lens 24 is installed in the second housing 21 and takes pictures through the front surface of the second housing 21. In the longitudinal direction, the height of the lens 24 is higher than the second axis L2;

[0084] The radar module 25 is installed in the second shell 21 and is photographed through the front surface of the second shell 21. In the longitudinal direction, the height of the radar module 25 is lower than the second axis L2.

[0085] Preferably, the second lens module 20 includes:

[0086] The support plate 23 is connected between the first side wall 21 a and the second side wall 21 b from the outside of the second shell 21 to balance the second shell 21 .

[0087] Since the first drive motor 31 and the second drive motor 41 both drive the structure disposed on one of the side walls of the second housing 21, in order to increase the stability of the single-sided force, the present embodiment provides a support plate 23, wherein the support plate 23 is formed as a structure connected between the first side wall 21a and the second side wall 21b to form a force transmission structure between the first side wall 21a and the second side wall 21b. Preferably, the support plate 23 is formed outside the second housing 21 and can be located at the bottom of the second housing 21 to support and protect the second housing 21.

[0088] like Figure 4 As shown, the brake disc assembly 42 includes:

[0089] A push rod 421, which is mounted on the end of the output shaft 41a; and

[0090] A brake disc 422, the brake disc 422 is connected to the support seat 11 as a whole;

[0091] The push rod 421 includes:

[0092] A first rod portion 4211, which is mounted on the end of the output shaft 41a and passes through the second housing 21;

[0093] The second rod portion 4212 extends radially outward from the end of the first rod portion 4211 . The second rod portion 4212 is used to fit in contact with the brake disc 422 so that the second lens module 20 and the first housing 10 are relatively stationary.

[0094] In this embodiment, the first rod portion 4211 and the output shaft 41a both penetrate the second housing 21, specifically, the second side wall 21b of the second housing 21. The first rod portion 4211 and the second housing 21 are in a relatively movable positional relationship. Based on the use environment of the camera device of this embodiment, a dynamic seal sealing structure needs to be provided at the position of the first rod portion 4211.

[0095] In one embodiment, the second housing 21 has a shaft hole 23 for the output shaft 41a and the first rod portion 4211 to pass through;

[0096] The brake disc assembly 42 includes a bushing 423 sleeved on the outside of the first rod portion 4211, and the bushing 423 is clamped between the first rod portion 4211 and the shaft hole 23;

[0097] The diameter of the shaft hole 23 is greater than the diameter of the first rod portion 4211 , and the bushing 423 is interference fit with the shaft hole 23 .

[0098] In this embodiment, the bushing 423 and the shaft hole 23 are relatively fixed by interference fit, and the first rod portion 4211 is movable relative to the bushing 423 , that is, there is a gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 .

[0099] One end of the bushing 423 forms a step portion 4231 extending radially outward to limit the bushing 423 axially to the outer surface of the second housing 21. The step portion 4231 fits the outer surface of the second housing 21, thereby forming a seal between the second housing 21 and the bushing 423.

[0100] Further, the brake disc assembly 42 includes:

[0101] The first sealing ring 424 is sleeved on the outside of the first rod portion 4211 and is limited between the step portion 4231 and the second rod portion 4212 to seal the shaft hole 23 .

[0102] Depend on Figure 5 It can be seen that the first sealing ring 424 is sealed between the step portion 4231 and the second rod portion 4212 from the outside of the second shell 21, and is always sealed between the step portion 4231 and the second rod portion 4212 when the push rod 421 moves linearly along the direction of the second axis L2, so as to seal the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 from the outer end (step portion 4231) of the bushing 423.

[0103] Further, the brake disc assembly 42 includes:

[0104] A second sealing ring 425, which is sleeved outside the first rod portion 4211 and located between the bushing 423 and the first rod portion 4211;

[0105] The first rod portion 4211 has a sealing groove 4213 for accommodating the second sealing ring 425 .

[0106] The sealing groove 4213 is used to accommodate the second sealing ring 425, but the depth of the sealing groove 4213 is less than the thickness of the second sealing ring 425, so that the second sealing ring 425 can protrude from the outer surface of the first rod portion 4211, thereby filling the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423. When the push rod 421 slides relative to the bushing 423, the second sealing ring 425 will be restricted in the sealing groove 4213 to always seal the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 from the inside of the bushing 423.

[0107] In a preferred embodiment, Figure 5 As shown, the first rod portion 4211 is threadedly connected to the end of the output shaft 41a, and the output shaft 41a rotates under the drive of the second driving motor 41;

[0108] The brake disc assembly 42 includes:

[0109] The guide rod 426 is connected between the second housing 21 and the second rod portion 4212 and extends along the second axis L2 to limit the push rod 421 to move linearly along the second axis L2 driven by the output shaft 41a.

[0110] In this embodiment, the second drive motor 41 can be selected as a common motor that outputs rotational power. The first rod portion 4211 is threadedly connected to the end of the output shaft 41a. Through the guide rod 426 that limits the second rod portion 4212 from rotating along with the output shaft 41a in the circumferential direction, the second rod portion 4212 does not rotate along with the output shaft 41a, but is screwed in or out of the end of the output shaft 41a through the thread, thereby realizing a linear movement along the extension direction of the output shaft 41a.

[0111] The first end of the guide rod 426 is fixed to the second housing 21, and the second end is passed through the second rod portion 4212. The guide rod 426 not only limits the rotation of the second rod portion 4212 in the circumferential direction, but also guides the movement direction of the second rod portion 4212.

[0112] In the second housing 21, in the longitudinal direction, the first drive motor 30 and the second drive motor 41 are respectively located on both sides of the second axis L2.

[0113] This embodiment provides a structure for achieving linear movement of a push rod by a rotating motor, but this embodiment is not limited to this, and a structure for achieving linear movement by a pneumatic push rod, a hydraulic push rod, etc. can also be used.

[0114] It can be seen from the above technical solution that this embodiment provides a brake module 40 for the second lens module 20, which is used to fix the relative position of the rotatable part (the second lens module 20) with respect to the fixed part (the first shell 10), so that when the first driving assembly 30 stops, the second lens module 20 and the first shell 10 are relatively stationary, thereby eliminating the shaking of the second lens assembly 20 at the rest position caused by the gear gap.

[0115] The first sealing ring 424 is sealed between the step portion 4231 and the second rod portion 4212 from the outside of the second shell 21. When the push rod 421 moves linearly along the direction of the second axis L2, it is always sealed between the step portion 4231 and the second rod portion 4212 to seal the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 from the outer end (step portion 4231) of the bushing 423.

[0116] The sealing groove 4213 is used to accommodate the second sealing ring 425, but the depth of the sealing groove 4213 is less than the thickness of the second sealing ring 425, so that the second sealing ring 425 can protrude from the outer surface of the first rod portion 4211, thereby filling the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423. When the push rod 421 slides relative to the bushing 423, the second sealing ring 425 will be restricted in the sealing groove 4213 to always seal the gap between the outer surface of the first rod portion 4211 and the inner surface of the bushing 423 from the inside of the bushing 423.

[0117] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention, and are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention, such as combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A camera device, characterized in that: include: A first housing (10), the first housing (10) defining a first axis (L1) extending in a longitudinal direction; A second lens module (20), the second lens module (20) being hung on the side wall of the first housing (10), and being driven by a first drive motor (30) to pitch and rotate around a second axis (L2) extending in a horizontal direction, wherein a second housing (21) of the second lens module (20) is mounted on a support seat (11) protruding from the side wall of the first housing (10) through a rotating pair (22), and the first drive assembly (30) is mounted in the second housing (21); A brake module (40), wherein the brake module (40) comprises: a second drive motor (41), the second drive motor (41) being installed in the second housing (21), and an output shaft (41a) of the second drive motor (41) penetrating the second housing (21) along the direction of the second axis (L2); and a brake disc assembly (42), the brake disc assembly (42) being mounted on the end of the output shaft (41a) so as to reciprocate along the direction of the second axis (L2) under the drive of the output shaft (41a); The second housing (21) and the support seat (11) form a gap spaced in the direction of the second axis (L2), and the brake disc assembly (42) is located in the gap; In response to a braking command and / or a stop signal of the first motor (30), the braking module (40) is configured to: drive the brake disc assembly (42) along the direction of the second axis (L2) to be in close contact with the support seat (11) so that the second lens module (20) and the first shell (10) are relatively stationary.

2. The camera device according to claim 1, characterized in that The second shell (21) comprises a first side wall (21a) and a second side wall (21b) which are arranged opposite to each other, the first side wall (21a) is rotatably connected to the support seat (11) via a first rotation pair (22a), the second side wall (21b) is rotatably connected to the support seat (11) via a second rotation pair (22b), and the first rotation pair (22a) and the second rotation pair (22b) define the second axis (L2); Wherein, the first driving motor (30) is adjacent to the first side wall (21a) to drive the second lens module (20) to pitch and rotate around the second axis (L2) through the first rotating pair (22a); The second driving motor (41) is adjacent to the second side wall (21b), and an output shaft (41a) of the second driving motor (41) passes through the second side wall (21b).

3. The imaging device according to claim 2, wherein: The second lens module (20) comprises: A support plate (23), wherein the support plate (23) is connected between the first side wall (21a) and the second side wall (21b) from the outside of the second shell (21) to balance the second shell (21).

4. The imaging device according to claim 1, wherein: The brake disc assembly (42) comprises: a push rod (421), the push rod (421) being mounted on the end of the output shaft (41a); and A brake disc (422), wherein the brake disc (422) is integrally connected to the support seat (11); The push rod (421) comprises: A first rod portion (4211), the first rod portion (4211) being mounted on an end portion of the output shaft (41a) and penetrating the second housing (21); A second rod portion (4212), wherein the second rod portion (4212) extends radially outward from the end of the first rod portion (4211), and the second rod portion (4212) is used to fit in contact with the brake disc (422) so that the second lens module (20) and the first shell (10) are relatively stationary.

5. The imaging device according to claim 4, characterized in that: The second housing (21) has a shaft hole (23) for the output shaft (41a) to pass through; The brake disc assembly (42) comprises a bushing (423) sleeved on the outside of the first rod portion (4211), and the bushing (423) is clamped between the first rod portion (4211) and the shaft hole (23); Wherein, the diameter of the shaft hole (23) is greater than the diameter of the first rod portion (4211), and the bushing (423) and the shaft hole (23) are interference fit; One end of the bushing (423) forms a step portion (4231) that is axially limited to the outer surface of the second housing (21).

6. The imaging device according to claim 4, characterized in that: The brake disc assembly (42) comprises: A first sealing ring (424), wherein the first sealing ring (424) is sleeved on the outside of the first rod portion (4211) and is limitedly located between the step portion (4231) and the second rod portion (4212) to seal the shaft hole (23).

7. The camera device according to claim 4, characterized in that: The brake disc assembly (42) comprises: A second sealing ring (425), the second sealing ring (425) is sleeved on the outside of the first rod portion (4211) and is located between the bushing (423) and the first rod portion (4211); The first rod portion (4211) has a sealing groove (4213) for accommodating the second sealing ring (425).

8. The imaging device according to claim 4, characterized in that: The first rod portion (4211) is threadedly connected to the end of the output shaft (41a), and the output shaft (41a) rotates under the drive of the second drive motor (41); The brake disc assembly (42) comprises: A guide rod (426) is connected between the second housing (21) and the second rod portion (4212) and extends along the second axis (L2) to limit the push rod (421) to move linearly along the second axis (L2) driven by the output shaft (41a).

9. The imaging device according to claim 8, wherein: The first end of the guide rod (426) is fixed to the second shell (21), and the second end is passed through the second rod portion (4212).

10. The camera device according to claim 1, characterized in that: In the longitudinal direction, the first drive motor (30) and the second drive motor (41) are respectively located on both sides of the second axis (L2). Wherein, the height of the first drive motor (30) is higher than the second axis (L2), and the height of the second drive motor (41) is lower than the second axis (L2).

11. The imaging device according to claim 1, wherein: The second lens module (20) comprises: a lens (24), the lens (24) being installed in the second housing (21) and taking pictures through the front surface of the second housing (21); in the longitudinal direction, the height of the lens (24) is higher than the second axis (L2); A radar module (25), wherein the radar module (25) is installed in the second shell (21) and is photographed through the front surface of the second shell (21); in the longitudinal direction, the height of the radar module (25) is lower than the second axis (L2).

Images