High-reliability fast-assembly four-eye night vision device main mirror body

Abstract

The utility model belongs to the technical field of night vision devices, and particularly discloses a high-reliability fast-assembly four-eye night vision device main mirror body. Connecting cavities are formed in the two sides of the interior of a main mirror frame of the main mirror body respectively, the image intensifiers are arranged in the connecting cavities in a sliding mode, the two connecting cavities in the main mirror frame are communicated with each other, and clamping grooves are formed in the upper wall and the lower wall of the main mirror frame respectively. Two conductive elastic sheets are respectively fixed on the two side surfaces of the circuit board at intervals up and down and are respectively elastically propped against the positive electrode and the negative electrode of the image intensifier; and the conductive contact pins penetrate through the upper wall of the main mirror frame and are electrically connected with the conductive elastic sheets of the circuit board. According to the utility model, the upper and lower walls between the two connecting cavities in the main mirror frame are respectively provided with the clamping grooves into which the circuit board can be inserted, and the two side surfaces of the circuit board are respectively and vertically fixed with the conductive elastic sheets which elastically abut against the positive and negative electrodes of the image intensifier, so that the image intensifier and the circuit board are convenient to install, and the electrical connection is stable and reliable after the image intensifier is installed; the device has the characteristics of compact structure, convenient installation and reliable connection.

Description

Technical Field

[0001] The utility model relates to the technical field of night vision devices, in particular to a high-reliability quick-install four-eye night vision device main mirror body with compact structure, convenient installation and reliable connection. Background Art

[0002] With the advancement of technology, night vision goggles have gradually evolved from the original monocular to the modern quadrilateral. Among them, monocular night vision goggles use one image intensifier and corresponding objective lens and eyepiece, so they are simple, portable and low-cost. However, due to the limited field of view and depth perception, they are currently commonly used for casual observation, reconnaissance and simple navigation. Binocular night vision goggles use two image intensifiers and two objective lenses and eyepieces to provide an independent field of view for each eye, so observation is more natural and depth perception is more accurate. Although the field of view is still subject to certain limitations and the cost is controllable, they are currently popular in outdoor adventures, long-term observations and certain professional tasks. Since quadrilateral night vision goggles are equivalent to integrating four sets of monocular night vision goggles, they can provide a 120-degree observation field of view that is basically equivalent to the natural field of view of the human eye, thus avoiding the problem of limited field of view of monocular and binocular lenses in the past. Therefore, they are gradually being used in search and rescue and special operations.

[0003] Since a four-eye night vision device is equivalent to integrating four sets of monocular night vision devices, its structure is more complex. In order to enable flexible application, it is necessary to improve the design to reduce weight and the difficulty of assembly and debugging, thereby reducing the burden of use and production. However, existing four-eye night vision devices are merely simple integrations of monocular night vision devices or binocular night vision devices. They mainly optimize and improve the image stitching quality and then use lightweight materials and integrated structures to reduce weight. However, due to the limited space of the main mirror body, not only is the overall weight reduction effect limited, but the assembly and subsequent debugging are more complicated and tedious. To this end, there is a prior art method that fixes a special-shaped spring bracket in the middle of the rear of the binocular tube housing, and fixes conductive springs on the spring bracket at the positive and negative positions corresponding to the image intensifier. This allows the positive and negative electrodes of the image intensifier installed in the binocular tube housing to elastically abut against the conductive springs on the spring bracket, ensuring that the image intensifier is securely positioned after being installed in the binocular tube housing while also forming a reliable electrical connection. However, since the shrapnel bracket has an irregular structure, it is not only complicated and costly to manufacture, but also requires workers' skills to accurately position and fix the shrapnel bracket in the binocular tube shell. In addition, it is difficult to replace or debug the conductive shrapnel after it fails. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a high-reliability quick-install four-eye night vision device main mirror body with compact structure, convenient installation, reliable connection and high reliability.

[0005] The present utility model is implemented as follows: it includes a main lens frame, an image intensifier, a circuit board, and a conductive pin. The left and right sides of the interior of the main lens frame are respectively provided with connecting cavities. The two image intensifiers are respectively slidably arranged in the two connecting cavities of the main lens frame. The interior of the main lens frame is interconnected between the two connecting cavities and the upper wall and the lower wall are respectively provided with corresponding card slots. The circuit board is vertically arranged and the upper and lower ends are respectively pluggable and arranged in the card slots of the upper wall and the lower wall of the main lens frame. Two conductive springs are fixed on the two side surfaces of the circuit board at an upper and lower interval. The conductive springs on both sides of the circuit board are respectively elastically abutted against the positive and negative poles of the two image intensifiers. The conductive pins pass through the upper wall of the main lens frame and are electrically connected to the conductive springs on the circuit board.

[0006] Furthermore, the conductive spring clips on the side of the circuit board are arranged on the upper and lower sides of the horizontal plane corresponding to the center of the image intensifier. The conductive spring clips include a plate-shaped connecting portion and a bent portion. The connecting portion is fixedly fitted to the side of the circuit board, and the bent portion protrudes from the surface of the circuit board. One end of the bent portion is connected to the connecting portion and the other end is suspended and elastically abuts against the electrode of the image intensifier.

[0007] Furthermore, the image end of the bent portion is connected to the connecting portion and the object end is suspended in the air. The cross-section of the bent portion is a "V"-shaped structure with the opening facing the circuit board and the top end corresponds to the electrode position of the image intensifier. The orthographic projection of the suspended end of the bent portion on the side of the circuit board is within the range of the connecting portion.

[0008] Furthermore, the upper and lower conductive spring sheets on one side of the circuit board are elastically in contact with the positive and negative poles of the corresponding image intensifier, respectively, and the upper and lower conductive spring sheets on the other side are elastically in contact with the negative and positive poles of the corresponding image intensifier, respectively. The conductive spring sheets on both sides of the circuit board that are elastically in contact with the positive pole are electrically connected to each other and the conductive spring sheets that are elastically in contact with the negative pole are electrically connected to each other. The positive and negative conductive spring sheets of the circuit board are electrically connected to the corresponding positive and negative conductive pins, respectively.

[0009] Furthermore, a conductive strip I is vertically fixed on each side of the circuit board, and the upper ends of the two conductive strips I are electrically connected to the conductive spring sheets on the same side. The two conductive strips I pass through the circuit board near the lower conductive spring sheet and are electrically connected to the conductive spring sheet at the lower part of the other side.

[0010] Furthermore, a conductive strip II is horizontally fixed on each side of the circuit board and extends to the image side end face close to the circuit board. One end of the conductive strip II is electrically connected to the conductive strip I on the same side and the other end is electrically connected to the corresponding conductive pin.

[0011] Further, grooves are vertically and / or horizontally arranged on both side surfaces of the circuit board, and the conductive strip I and / or the conductive strip II are fixedly arranged in the corresponding grooves and the top surfaces are not higher than the side surfaces of the circuit board.

[0012] Further, the circuit board clamped in the card slot of the main frame extends towards the image side and a connecting plate is horizontally fixed at the top end. Two crown spring terminals cooperating with the conductive pins are arranged at intervals on the upper surface of the connecting plate, and the two crown spring terminals are electrically connected to the corresponding positive and negative conductive elastic pieces respectively.

[0013] Further, the card slot is a "U" - shaped or "V" - shaped groove. The card slot on the upper wall of the main frame is a stepped groove and the object - side groove depth is less than the image - side groove depth. The upper end of the circuit board is a stepped surface corresponding to the card slot on the upper wall of the main frame, and the length of the object - side upper end surface of the circuit board is less than the object - side length of the card slot on the upper wall of the main frame.

[0014] Further, the part of the connection cavity close to the object side is in a columnar structure and slidably houses the object - side part of the image intensifier. The middle part of the connection cavity and the side wall of the image side far from the circuit board are arc surfaces that can be fitted to the outer circular surface of the image intensifier, and the electrodes of the image intensifier are arranged close to the image side.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. In the utility model, two mutually - connected connection cavities are arranged in the main frame to accommodate the image intensifier, and card slots for inserting the circuit board are respectively arranged corresponding to the upper and lower walls of the main frame between the connection cavities. Conductive elastic pieces that elastically abut against the positive and negative poles of the image intensifier are respectively fixed up and down on both side surfaces of the circuit board. Thus, the image intensifier can be slidably installed through the connection cavity and the circuit board can be inserted and removed through the card slot, effectively simplifying the assembly and debugging work of the image intensifier and the circuit board, avoiding the deficiency that the assembly accuracy depends on the skills of workers. Moreover, the electrodes after the image intensifier is installed elastically abut against the conductive elastic pieces on the circuit board, which can also ensure a stable and reliable electrical connection after assembly.

[0017] 2. According to the structural characteristics of the main mirror body of the four - eye night vision device, the utility model optimizes the design to connect the two connection cavities in the main frame to each other, and arranges card slots on the upper and lower walls of the main frame to insert and remove the circuit board. This can not only simplify the structures of the main frame and the circuit board and reduce the process cost, but also effectively reduce the weight of the structure and lighten the use burden on the premise of ensuring a reliable connection after assembly.

[0018] 3. The image intensifier of the present invention forms a micro-floating connection structure through the connection cavity of the main lens frame and the conductive spring clip on the circuit board, which can effectively reduce the impact on the image intensifier caused by violent shaking and bumping of the night vision device, thereby improving the stability and service life of the image intensifier. Moreover, the elastic contact between the conductive spring clip and the electrode can not only ensure the reliability of the electrical connection after long-term use, but also effectively reduce the difficulty of electrical connection of the image intensifier.

[0019] In summary, the utility model has the characteristics of compact structure, convenient installation and reliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is an exploded view of the present utility model;

[0022] Figure 3 It is a side view of the utility model;

[0023] Figure 4 for Figure 3 AA sectional view;

[0024] Figure 5 This is a schematic diagram of the circuit board structure of the utility model;

[0025] Figure 6 for Figure 5 The upper right top view of

[0026] In the figure: 1-main mirror frame, 11-connecting cavity, 12-card slot, 13-dovetail groove, 2-image intensifier, 21-electrode, 3-circuit board, 31-conductive spring, 311-connecting part, 312-bending part, 32-conductive strip I, 33-conductive strip II, 34-connecting plate, 35-crown spring terminal, 4-conductive pin. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figures 1 to 6As shown, the present invention includes a main lens frame 1, an image intensifier 2, a circuit board 3, and a conductive pin 4. The main lens frame 1 is provided with connecting cavities 11 on the left and right sides. The two image intensifiers 2 are respectively slidably arranged in the two connecting cavities 11 of the main lens frame 1. The two connecting cavities 11 inside the main lens frame 1 are interconnected, and the upper and lower walls are respectively provided with corresponding card slots 12. The circuit board 3 is vertically arranged and the upper and lower ends are respectively pluggable and arranged in the card slots 12 on the upper and lower walls of the main lens frame 1. Two conductive springs 31 are fixed on the two side surfaces of the circuit board 3 at an upper and lower interval. The conductive springs 31 on both sides of the circuit board 3 are respectively elastically abutted against the positive and negative poles of the two image intensifiers 2. The conductive pin 4 passes through the upper wall of the main lens frame 1 and is electrically connected to the conductive springs 31 on the circuit board 3.

[0029] The conductive spring clips 31 on the side of the circuit board 3 are arranged on the upper and lower sides of the central horizontal plane corresponding to the image intensifier 2. The conductive spring clips 31 include a plate-shaped connecting portion 311 and a bent portion 312. The connecting portion 311 is fixedly fitted to the side of the circuit board 3, and the bent portion 312 protrudes from the surface of the circuit board 3. One end of the bent portion 312 is connected to the connecting portion 311, and the other end is suspended and elastically abuts against the electrode 21 of the image intensifier 2.

[0030] The image end of the bent portion 312 is connected to the connecting portion 311 and the object end is suspended. The cross-section of the bent portion 312 is a "V"-shaped structure with the opening facing the circuit board 3 and the top end corresponds to the position of the electrode 21 of the image intensifier 2. The orthographic projection of the suspended end of the bent portion 312 on the side of the circuit board 3 is within the range of the connecting portion 311.

[0031] The upper and lower conductive spring clips 31 on one side of the circuit board 3 are elastically in contact with the positive and negative poles of the corresponding image intensifier 2, respectively, and the upper and lower conductive spring clips 31 on the other side are elastically in contact with the negative and positive poles of the corresponding image intensifier 2, respectively. The conductive spring clips 31 on both sides of the circuit board 3 that are elastically in contact with the positive pole are electrically connected to each other and the conductive spring clips 31 that are elastically in contact with the negative pole are electrically connected to each other. The positive and negative conductive spring clips 31 of the circuit board 3 are electrically connected to the corresponding positive and negative conductive pins 4, respectively.

[0032] A conductive strip I32 is vertically fixed on each side of the circuit board 3. The upper ends of the two conductive strips I32 are electrically connected to the conductive spring piece 31 on the same side. The two conductive strips I32 pass through the circuit board 3 near the lower conductive spring piece 31 and are electrically connected to the conductive spring piece 31 at the lower part of the other side.

[0033] On both side surfaces of the circuit board 3, a conductive strip II 33 is horizontally fixed respectively and extends to near the image-side end surface of the circuit board 3. One end of the conductive strip II 33 is electrically connected to the conductive strip I 32 on the same side, and the other end is electrically connected to the corresponding conductive pin 4.

[0034] On both side surfaces of the circuit board 3, grooves are vertically and / or horizontally arranged. The conductive strip I 32 and / or the conductive strip II 33 are fixedly arranged in the corresponding grooves, and the top surfaces are not higher than the side surfaces of the circuit board 3.

[0035] The circuit board 3 clamped in the card slot 12 of the main frame 1 extends towards the image side, and a connecting plate 34 is horizontally fixed at the top end. On the upper surface of the connecting plate 34, two crown spring terminals 35 cooperating with the conductive pins 4 are arranged at intervals. The two crown spring terminals 35 are respectively electrically connected to the corresponding positive and negative conductive elastic pieces 31.

[0036] In the middle of the upper surface of the main frame 1, a dovetail groove 13 is arranged. At the bottom of the dovetail groove 13, a through hole penetrating the top wall of the main frame 1 is arranged. The conductive pin 4 slides through the through hole at the bottom of the dovetail groove 13, and the lower end is inserted into the crown spring terminal 35.

[0037] The card slot 12 is a "U" - shaped or "V" - shaped groove. The card slot 12 on the upper wall of the main frame 1 is a stepped groove, and the object - side groove depth is less than the image - side groove depth. The upper end of the circuit board 3 is a stepped surface corresponding to the card slot 12 on the upper wall of the main frame 1. The length of the object - side upper end surface of the circuit board 3 is less than the object - side length of the card slot 12 on the upper wall of the main frame 1.

[0038] The part of the connection cavity 11 near the object side is in a columnar structure and slidably houses the object - side part of the image intensifier 2. The middle part of the connection cavity 11 and the side wall on the image side far from the circuit board 3 are arc surfaces that can fit the outer circular surface of the image intensifier 2. The electrode 21 of the image intensifier 2 is arranged near the image side.

[0039] The working principle and working process of the utility model:

[0040] As Figures 1 to 6 shown, during assembly, first, the upper and lower ends of the circuit board 3 are slid from the image side to the object side and clamped into the card slots 12 on the upper and lower walls of the main frame 1. Then, the conductive pin 4 slides through the through hole at the bottom of the dovetail groove 13, and the lower end is inserted into the crown spring terminal 35 at the top end of the circuit board 3. Subsequently, the two image intensifiers 2 are respectively slid and pushed into the two connection cavities 11 of the main frame 1 from the image side, so that the object - side part of the image intensifier 2 enters the columnar structure on the object - side of the connection cavity 11 and is positioned. At the same time, the electrode 21 on the image side of the image intensifier 2 is elastically abutted against the conductive elastic piece 31 on the circuit board 3, completing the installation of the main mirror body.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A high-reliability quick-install four-eye night vision device main lens, characterized by: The invention comprises a main lens frame (1), an image intensifier (2), a circuit board (3), and a conductive pin (4). The main lens frame (1) is provided with connecting cavities (11) on the left and right sides. The two image intensifiers (2) are respectively slidably arranged in the two connecting cavities (11) of the main lens frame (1). The two connecting cavities (11) are interconnected inside the main lens frame (1), and the upper wall and the lower wall are respectively provided with card slots (12). The circuit board (3) is vertically arranged and the upper and lower ends are respectively pluggable and arranged in the card slots (12) on the upper wall and the lower wall of the main lens frame (1). Two conductive springs (31) are fixed on the two side surfaces of the circuit board (3) at an upper and lower interval. The conductive springs (31) on both sides of the circuit board (3) are respectively elastically abutted against the positive and negative electrodes of the two image intensifiers (2). The conductive pin (4) passes through the upper wall of the main lens frame (1) and is electrically connected to the conductive springs (31) on the circuit board (3).

2. The high-reliability quick-install four-eye night vision device main lens according to claim 1, characterized in that: The conductive springs (31) on the side of the circuit board (3) are arranged on the upper and lower sides of the central horizontal plane corresponding to the image intensifier (2), and the conductive springs (31) include a plate-shaped connecting portion (311) and a bent portion (312). The connecting portion (311) is fixedly fitted to the side of the circuit board (3), and the bent portion (312) protrudes from the surface of the circuit board (3). One end of the bent portion (312) is connected to the connecting portion (311) and the other end is suspended and elastically abuts against the electrode (21) of the image intensifier (2).

3. The high-reliability quick-install four-eye night vision device main lens according to claim 2, characterized in that: The image end of the bent portion (312) is connected to the connecting portion (311) and the object end is suspended in the air. The cross section of the bent portion (312) is a "V"-shaped structure with its opening facing the circuit board (3), and the top end corresponds to the position of the electrode (21) of the image intensifier (2). The orthographic projection of the suspended end of the bent portion (312) on the side of the circuit board (3) is within the range of the connecting portion (311).

4. The high-reliability quick-install four-eye night vision device main lens according to claim 2, characterized in that: The upper and lower conductive spring sheets (31) on one side of the circuit board (3) are elastically abutted against the positive and negative electrodes of the corresponding image intensifier (2), respectively, and the upper and lower conductive spring sheets (31) on the other side are elastically abutted against the negative and positive electrodes of the corresponding image intensifier (2), respectively. The conductive spring sheets (31) elastically abutting against the positive electrodes on both sides of the circuit board (3) are electrically connected to each other and the conductive spring sheets (31) elastically abutting against the negative electrodes are electrically connected to each other. The positive and negative conductive spring sheets (31) of the circuit board (3) are electrically connected to the corresponding positive and negative conductive pins (4), respectively.

5. The high-reliability quick-install four-eye night vision device main lens according to claim 4, characterized in that: A conductive strip I (32) is vertically fixed on each of the two side surfaces of the circuit board (3), and the upper ends of the two conductive strips I (32) are electrically connected to the conductive spring sheet (31) on the same side. The two conductive strips I (32) pass through the circuit board (3) near the lower conductive spring sheet (31) and are electrically connected to the conductive spring sheet (31) at the lower part of the other side.

6. The high-reliability quick-install four-eye night vision device main lens according to claim 5, characterized in that: On both side surfaces of the circuit board (3), a conductive strip II (33) is horizontally fixed respectively and extends to be close to the image-side end face of the circuit board (3). One end of the conductive strip II (33) is electrically connected to the conductive strip I (32) on the same side, and the other end is electrically connected to the corresponding conductive pin (4).

7. The high-reliability quick-install four-eye night vision device main lens according to claim 6, characterized in that: On both side surfaces of the circuit board (3), grooves are vertically and / or horizontally arranged respectively. The conductive strip I (32) and / or the conductive strip II (33) are fixedly arranged in the corresponding grooves and the top surfaces are not higher than the side surfaces of the circuit board (3).

8. The high-reliability quick-install four-eye night vision device main lens according to any one of claims 2 to 7, characterized in that: The circuit board (3) clamped in the card slot (12) of the main frame (1) extends towards the image side, and a connecting plate (34) is horizontally fixed at the top end. Two crown spring terminals (35) cooperating with the conductive pins (4) are arranged at intervals on the upper surface of the connecting plate (34). The two crown spring terminals (35) are respectively electrically connected to the corresponding positive and negative conductive elastic pieces (31).

9. The high-reliability quick-install four-eye night vision device main lens according to claim 8, characterized in that: The card slot (12) is a "U" - shaped or "V" - shaped groove. The card slot (12) on the upper wall of the main frame (1) is a stepped groove, and the object-side groove depth is less than the image-side groove depth. The upper end of the circuit board (3) is a stepped surface corresponding to the card slot (12) on the upper wall of the main frame (1). The length of the object-side upper end face of the circuit board (3) is less than the object-side length of the card slot (12) on the upper wall of the main frame (1).

10. The high-reliability quick-install four-eye night vision device main lens according to claim 8, characterized in that: The part of the connection cavity (11) close to the object side is of a columnar structure and slidably houses the object-side part of the image intensifier (2). The middle part of the connection cavity (11) and the side wall on the image side far from the circuit board (3) are arc surfaces that can fit the outer circular surface of the image intensifier (2). The electrode (21) of the image intensifier (2) is arranged close to the image side.

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