Camera control mainboard structure and endoscope camera

Abstract

The present invention relates to a camera control mainboard structure and an endoscope camera, wherein the camera control mainboard structure comprises a rigid circuit board, a flexible circuit board and a positioning member. There are more than two rigid circuit boards, which are arranged in sequence at intervals, and adjacent rigid circuit boards are arranged face to face with each other, and adjacent rigid circuit boards are electrically connected through a flexible circuit board. The positioning member is connected to the rigid circuit board, and the positioning member is used to keep adjacent rigid circuit boards at a preset interval. In the above-mentioned camera control mainboard structure, the camera control mainboard can adapt to the internal space of the shell, has a compact structure, can reduce the volume size of the shell, and reduces the difficulty of assembly. In addition, the positioning member is used to keep adjacent rigid circuit boards at a preset interval, so that the structure between the rigid circuit board and the flexible circuit board is relatively stable, thereby ensuring the reliability of the connection between the circuit boards.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a camera control mainboard structure and an endoscope camera. Background Art

[0002] An endoscope camera head includes a housing and a control mainboard disposed in the housing. Due to the size of the endoscope camera head, the internal space of the housing is relatively small, and the control mainboard is generally divided into multiple circuit boards, which are connected by board-to-board connectors and fixed in series with studs. However, the traditional control mainboard still occupies a large space and has low reliability. The board-to-board connector is easy to loosen, which easily leads to circuit stability problems and unstable image signals. Summary of the invention

[0003] Based on this, it is necessary to overcome the defects of the prior art and provide a camera control mainboard structure and an endoscope camera, which can improve the connection reliability of the circuit board, have a compact structure, can reduce the overall volume, and have low assembly difficulty.

[0004] The technical solution is as follows: a camera control mainboard structure, comprising: a rigid circuit board and a flexible circuit board, wherein there are more than two rigid circuit boards, the two or more rigid circuit boards are arranged in sequence with intervals, adjacent rigid circuit boards are arranged face to face, and adjacent rigid circuit boards are electrically connected through the flexible circuit board; a positioning member, the positioning member is connected to the rigid circuit board, and the positioning member is used to keep the adjacent rigid circuit boards at a preset interval.

[0005] The camera control mainboard structure mentioned above changes the traditional control mainboard into a rigid circuit board and a flexible circuit board, for example, by combining them together through an integration process, so that the camera control mainboard can adapt to the internal space of the housing, has a compact structure, can reduce the volume size of the housing, and reduces the difficulty of assembly. In addition, the positioning member is used to keep adjacent rigid circuit boards at a preset interval, so that the structure between the rigid circuit board and the flexible circuit board is relatively stable, ensuring the reliability of the connection between the circuit boards.

[0006] In one of the embodiments, at least two first snap-in openings are sequentially and spaced apart from each other on the positioning member, and the at least two first snap-in openings correspond one-to-one to the at least two rigid circuit boards, and the rigid circuit boards are clamped in the first snap-in openings.

[0007] In one embodiment, a second snap-in corresponding to the first snap-in is provided on the edge of the rigid circuit board, and the positioning member is held in the second snap-in.

[0008] In one of the embodiments, two or more clamping members are sequentially and spaced apart from each other on the positioning member, the two or more clamping members correspond one-to-one to the two or more rigid circuit boards, and the rigid circuit boards are clamped by the clamping members.

[0009] In one embodiment, there are more than two positioning members.

[0010] In one embodiment, there are three rigid circuit boards and two flexible circuit boards, one of the flexible circuit boards is electrically connected to one end of the rigid circuit board in the middle, and one of the flexible circuit boards is also electrically connected to the end of the rigid circuit board on one side; another flexible circuit board is electrically connected to the other end of the rigid circuit board in the middle, and another flexible circuit board is also electrically connected to the end of the rigid circuit board on the other side.

[0011] Optionally, when there are two rigid circuit boards, there is correspondingly one flexible circuit board, and the flexible circuit board is disposed between the two rigid circuit boards to electrically connect the two rigid circuit boards.

[0012] An endoscopic camera head includes the camera control mainboard structure, and also includes a shell, a support seat, a shielding cover, a lens and a cable. The support seat is arranged in the shell, the lens is arranged on the support seat, the camera control mainboard structure is arranged in the shielding cover, one end of the cable is electrically connected to an external host, and the other end of the cable passes through the shell and the shielding cover in sequence and then is electrically connected to the camera control mainboard structure.

[0013] The above-mentioned endoscope camera changes the traditional control mainboard into a rigid circuit board and a flexible circuit board, specifically, by combining them together through an integrated process, so that the camera control mainboard can adapt to the internal space of the shell, and the structure is compact, which can reduce the volume size of the shell and reduce the difficulty of assembly. In addition, the positioning member is used to keep the adjacent rigid circuit boards at a preset interval, so that the structure between the rigid circuit board and the flexible circuit board is relatively stable, ensuring the reliability of the connection between the circuit boards. In addition, the shielding cover shields the camera control mainboard structure inside it, preventing external signal interference, and also preventing the magnetic signal generated by the camera control mainboard structure from radiating outward.

[0014] In one embodiment, the support seat includes a seat body and a sleeve body circumferentially arranged around one end of the seat body, the mouth of the shielding cover faces the seat body, and the shielding cover is arranged in the sleeve body.

[0015] In one of the embodiments, an axial hole is provided on one end surface of the base body, the rigid circuit board adjacent to the base body abuts against one end surface of the base body, an image sensor is provided on the rigid circuit board, and the image sensor is located in the axial hole.

[0016] In one embodiment, a first opening is provided on the top wall of the shielding cover, a first wiring terminal corresponding to the first opening is provided on the rigid circuit board adjacent to the top wall, and the first wiring terminal is arranged in the first opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a camera control mainboard structure according to an embodiment of the present invention from one viewing angle;

[0018] Figure 2 It is a schematic diagram of another perspective of the camera control mainboard structure according to an embodiment of the present invention;

[0019] Figure 3 It is a structural schematic diagram of an endoscope camera head according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 Schematic diagram of the local structure in;

[0021] Figure 5 It is a structural schematic diagram of an endoscope camera head according to an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of a partial structure of an endoscope camera head according to an embodiment of the present invention Figure 1 ;

[0023] Figure 7 A schematic diagram of a partial structure of an endoscope camera head according to an embodiment of the present invention Figure 2 .

[0024] Reference numerals:

[0025] 10. Camera control main board structure; 11. Rigid circuit board; 111. Second bayonet; 112. Image sensor; 113. First terminal; 114. Second mounting hole; 115. Notch; 12. Flexible circuit board; 13. Positioning member; 131. First bayonet; 20. Shell; 21. Through hole; 22. Groove; 23. Concave portion; 30. Support seat; 31. Seat body; 311. Axial hole; 32. Sleeve body; 40. Shielding cover; 41. The first opening; 42, the second opening; 43, the avoidance step; 44, the mouth; 50, the lens; 60, the cable; 70, the switch circuit board; 71, the second terminal; 80, the insulating cover; 91, the first connecting piece; 92, the button; 921, the pressing column; 922, the skirt; 9221, the annular plate; 9222, the annular flange; 93, the pressing piece; 931, the third opening; 932, the mounting piece; 94, the micro switch; 95, the second connecting piece. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the description of the present invention, it should be understood that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be intermediate elements at the same time. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0029] In one embodiment, see Figure 1 and Figure 2A camera control mainboard structure 10 includes a rigid circuit board 11, a flexible circuit board 12, and a positioning member 13. The rigid circuit boards 11 are two or more, and the two or more rigid circuit boards 11 are arranged in sequence and spaced apart, and adjacent rigid circuit boards 11 are arranged face to face, and adjacent rigid circuit boards 11 are electrically connected through the flexible circuit board 12. The positioning member 13 is connected to the rigid circuit board 11, and the positioning member 13 is used to keep the adjacent rigid circuit boards 11 at a preset interval.

[0030] The camera control mainboard structure 10 mentioned above changes the traditional control mainboard into a rigid circuit board 11 and a flexible circuit board 12, which are specifically combined together through an integration process, so that the camera control mainboard can adapt to the internal space of the housing 20, and the structure is compact, which can reduce the volume size of the housing 20 and reduce the difficulty of assembly. In addition, the positioning member 13 is used to keep the adjacent rigid circuit boards 11 at a preset interval, so that the structure between the rigid circuit board 11 and the flexible circuit board 12 is relatively stable, and the reliability of the connection between the circuit boards is ensured.

[0031] For further information, see Figure 1 and Figure 2 , the positioning member 13 is provided with two or more first bayonet holes 131 at intervals. The two or more first bayonet holes 131 correspond to the two or more rigid circuit boards 11 one by one, and the rigid circuit boards 11 are clamped in the first bayonet holes 131. In this way, after the rigid circuit boards 11 are clamped in the first bayonet holes 131, the positioning member 13 keeps the adjacent rigid circuit boards 11 at a preset interval to ensure the reliability of the connection between the circuit boards. It can be understood that the specific size of the preset interval is set according to the volume size of the components on the rigid circuit board 11, and the preset interval is small enough as long as it does not affect the components on the rigid circuit board 11.

[0032] For further information, see Figure 1 and Figure 2 , the edge of the rigid circuit board 11 is provided with a second bayonet 111 corresponding to the first bayonet 131. The positioning member 13 is clamped in the second bayonet 111. In this way, the positioning member 13 is clamped in the second bayonet 111, which can further realize the clamping and firm combination between the rigid circuit board 11 and the positioning member 13; in addition, the structure is simple, and when the first bayonet 131 of the positioning member 13 and the second bayonet 111 on the rigid circuit board 11 are aligned and pressed for assembly, the positioning member 13 and the rigid circuit board 11 can be assembled and fixed together, and the assembly operation is relatively convenient.

[0033] Different from the above embodiment in which two or more first bayonet holes 131 are arranged at intervals on the positioning member 13, as a feasible solution, two or more clamping members are arranged at intervals on the positioning member 13. The two or more clamping members correspond to the two or more rigid circuit boards 11 one by one, and the rigid circuit boards 11 are clamped in the clamping members. In this way, after the rigid circuit boards 11 are clamped and fixed in the clamping members, the positioning member 13 keeps the adjacent rigid circuit boards 11 at a preset interval to ensure the reliability of the connection between the circuit boards.

[0034] In one embodiment, there are more than two positioning members 13. Using more than two positioning members 13 can achieve a stable connection between the rigid circuit boards 11 and ensure the reliability of the connection between the circuit boards.

[0035] In one embodiment, see Figure 1 and Figure 2 , there are three rigid circuit boards 11 and two flexible circuit boards 12, one of which is electrically connected to one end of the rigid circuit board 11 in the middle, and one of which is also electrically connected to the end of the rigid circuit board 11 on one side; another flexible circuit board 12 is electrically connected to the other end of the rigid circuit board 11 in the middle, and another flexible circuit board 12 is also electrically connected to the end of the rigid circuit board 11 on the other side. In this way, the three rigid circuit boards 11 and the two flexible circuit boards 12 are arranged in an "S" shape as a whole, with a compact structure and small space occupation.

[0036] Optionally, when there are two rigid circuit boards 11 , there is one flexible circuit board 12 , and the flexible circuit board 12 is disposed between the two rigid circuit boards 11 to electrically connect the two rigid circuit boards 11 .

[0037] Optionally, when there are four rigid circuit boards 11 , there are correspondingly three flexible circuit boards 12 , and any adjacent rigid circuit boards 11 are electrically connected via a corresponding flexible circuit board 12 .

[0038] In one embodiment, see Figure 3 and Figure 4 , an endoscope camera head, comprising the camera control mainboard structure 10 described in any of the above embodiments, and also comprising a shell 20, a support seat 30, a shielding cover 40, a lens 50 and a cable 60. The support seat 30 is arranged in the shell 20. The support seat 30 is specifically a plastic support seat 30, which plays an insulating role. The lens 50 is arranged on the support seat 30. The camera control mainboard structure 10 is arranged in the shielding cover 40. One end of the cable 60 is electrically connected to an external host, and the other end of the cable 60 passes through the shell 20 and the shielding cover 40 in sequence and then is electrically connected to the camera control mainboard structure 10.

[0039] The above-mentioned endoscope camera changes the traditional control mainboard into a rigid circuit board 11 and a flexible circuit board 12, which are specifically combined together through an integrated process, so that the camera control mainboard can adapt to the internal space of the housing 20, and the structure is compact, which can reduce the volume size of the housing 20 and reduce the difficulty of assembly. In addition, the positioning member 13 is used to keep the adjacent rigid circuit boards 11 at a preset interval, so that the structure between the rigid circuit board 11 and the flexible circuit board 12 is relatively stable, ensuring the reliability of the connection between the circuit boards. In addition, the shielding cover 40 shields the camera control mainboard structure 10 inside it, prevents external signal interference, and can also prevent the magnetic signal generated by the camera control mainboard structure 10 from radiating outward.

[0040] For further information, see Figure 4 The support seat 30 includes a seat body 31 and a sleeve body 32 circumferentially arranged around one end of the seat body 31. The mouth 44 of the shielding cover 40 faces the seat body 31, and the shielding cover 40 is arranged in the sleeve body 32. In this way, the sleeve body 32 is sleeved on the outside of the shielding cover 40, which plays a protective role and a limiting role for the shielding cover 40. Furthermore, the outer wall of the seat body 31 and the inner wall of the shell 20 are sealed and matched, thereby playing a good waterproof role. In addition, since the shielding cover 40 is arranged in the sleeve body 32, the mouth of the shielding cover 40 faces the seat body 31, and the shielding cover 40 and the sleeve body 32 both play a protective role for the camera control mainboard structure 10, and the waterproof effect is good. In addition, the combination of the shielding cover 40 and the camera control mainboard structure 10 can achieve a smaller volume size of the device.

[0041] For further information, see Figure 4 , an axial hole 311 is provided on one end face of the seat body 31. The rigid circuit board 11 adjacent to the seat body 31 abuts against one end face of the seat body 31, and an image sensor 112 is provided on the rigid circuit board 11, and the image sensor 112 is located in the axial hole 311. In this way, the image sensor 112 provided on the rigid circuit board 11 extends into the axial hole 311 of the seat body 31, which, on the one hand, plays a positioning role and has a good fixing effect; on the other hand, the space of the axial hole 311 is reasonably utilized, which can reduce the size of the device to a certain extent.

[0042] In one embodiment, see Figure 4, a first opening 41 is provided on the top wall of the shielding cover 40, and a first terminal 113 corresponding to the first opening 41 is provided on the rigid circuit board 11 adjacent to the top wall, and the first terminal 113 is arranged in the first opening 41. In addition, a second opening 42 is also provided on the top wall of the shielding cover 40, and the cable 60 extends into the shielding cover 40 through the second opening 42 and is electrically connected to the rigid circuit board 11. In this way, on the one hand, the first terminal 113 of the rigid circuit board 11 can be electrically connected to the second terminal 71 of the switch circuit board 70 through a wire; on the other hand, since the first terminal 113 is arranged in the first opening 41, the structure between the rigid circuit board 11 and the shielding cover 40 is compact, and the device volume size is small.

[0043] In one embodiment, see Figure 4 , the endoscope camera head also includes a switch circuit board 70 and an insulating cover 80. The switch circuit board 70 is arranged in the housing 20, and the switch circuit board 70 is installed on the support seat 30. The insulating cover 80 is covered on the switch circuit board 70. In this way, an insulating cover 80 is added between the switch circuit board 70 and the inner side wall of the housing 20, which is covered outside the switch circuit board 70. The insulating cover 80 can achieve a creepage distance between the switch circuit board 70 and the inner side wall of the housing 20 that is satisfied to be more than 4 mm, so that the safe creepage distance can be achieved when the housing 20 is subjected to a withstand voltage test of, for example, 4000 volts, and the electric voltage breakdown phenomenon generated during the withstand voltage test can be avoided, thereby improving the safety of the product. Since the insulating cover 80 increases the creepage distance between the housing 20 and the switch circuit board 70, the interval between the switch circuit board 70 and the housing 20 is reduced to a certain extent under the premise of ensuring safety, thereby reducing the volume size of the product while ensuring safety.

[0044] In one embodiment, see Figure 5 and Figure 6 The endoscope camera head further comprises a first connector 91. The first connector 91 connects the insulating cover 80, the switch circuit board 70 and the support base 30. In this way, the insulating cover 80 and the switch circuit board 70 can be fixedly mounted on the support base 30.

[0045] For further information, see Figure 5 and Figure 6 , there are more than two first connectors 91. More than two first connectors 91 can realize that the insulating cover 80, the switch circuit board 70 and the support seat 30 are firmly combined together. In addition, the first connector 91 is an insulating first connector 91. Specifically, the first connector 91 is an insulating screw, an insulating screw, an insulating pin, etc.

[0046] For further information, see Figure 5 and Figure 6 The inner surface of the insulating cover 80 matches the surface of the switch circuit board 70 facing away from the support seat 30. In this way, the device volume can be reduced while playing the role of insulation protection. In addition, when the key 92 presses the switch circuit board 70, the switch circuit board 70 can also be driven to act accordingly.

[0047] In one embodiment, a gap is provided between the outer wall of the insulating cover 80 and the inner wall of the housing 20. The gap can increase the safe creepage distance and improve the safety performance.

[0048] In one embodiment, the housing 20 is a metal housing 20. Specifically, the housing 20 is an aluminum alloy housing. Compared with a plastic housing, the metal housing 20 has better wear resistance, is more durable, has a longer service life, and can avoid damage.

[0049] In one embodiment, see Figure 5 and Figure 6 The endoscope camera head further comprises a button 92 and a micro switch 94. The housing 20 is provided with a through hole 21. The button 92 is movably arranged in the through hole 21, and the button 92 and the micro switch 94 are arranged in cooperation.

[0050] In one embodiment, see Figures 5 to 7 , the button 92 includes a pressing column 921 and a skirt 922. Specifically, the pressing column 921 and the skirt 922 are an integrated structure. The pressing column 921 is movably arranged in the through hole 21, and the skirt 922 is connected to one end of the pressing column 921 located outside the shell 20. The skirt 922 is arranged around the circumference of the pressing column 921. The skirt 922 is in close contact with the outer wall of the shell 20. The part where the skirt 922 contacts the outer wall of the shell 20 is arranged around the periphery of the through hole 21. The button 92 is an elastomer. Since the skirt 922 is in close contact with the outer wall of the shell 20, and the part where the skirt 922 contacts the outer wall of the shell 20 is arranged around the periphery of the through hole 21, the skirt 922 can prevent water outside the shell 20 from entering the shell 20 through the through hole 21, and has good sealing performance. In addition, the button 92 itself is an elastic body, and the pressing column 921 can move up and down in the through hole 21 when the button 92 is pressed, so as to realize the function of a button. Compared with the traditional method of bonding and sealing the supporting shell 20 with glue, the assembly process can be simplified, the production efficiency and yield rate can be improved, and the cost can be reduced; in addition, the above-mentioned button 92 can achieve good sealing performance, and can also reduce the product volume size to a certain extent due to its simple structure.

[0051] For further information, see Figures 5 to 7, the outer wall of the shell 20 is formed with a groove 22 arranged around the circumference of the through hole 21. The end of the skirt 922 is inserted into the groove 22, and the end of the skirt 922 is in close contact with the inner wall of the groove 22. Specifically, the end of the skirt 922 is pressed and fixed to the outer wall of the shell 20 by a pressing member 93, so that the end of the skirt 922 is in close contact with the outer wall of the shell 20. Alternatively, the end of the skirt 922 can also be clamped in the groove 22 by a snap-fitting manner. On the one hand, when the end of the skirt 922 is in close contact with the inner wall of the groove 22, it can play a good waterproof role; on the other hand, after the end of the skirt 922 is set in the groove 22, it can ensure the stability of the key 92 during the pressing process.

[0052] In one embodiment, see Figures 5 to 7 The endoscope camera head further comprises a pressing member 93. The pressing member 93 is mounted on the housing 20, and the pressing member 93 is used to make the end of the skirt 922 in close contact with the outer side wall of the housing 20. As an optional solution, the end of the skirt 922 can also be clamped in the groove 22 by clamping.

[0053] For further information, see Figures 5 to 7 , the pressing member 93 is a pressing plate, and the skirt 922 includes an annular plate 9221 and an annular flange 9222. One end of the annular plate 9221 is connected to the pressing column 921, and the outer side wall of the other end of the annular plate 9221 is connected to the inner side wall of the annular flange 9222. The annular flange 9222 is in close contact with the outer side wall of the shell 20. The pressing plate is provided with a third opening 931 sleeved outside the skirt 922, the outer side wall of the annular plate 9221 is in contact with the side wall forming the third opening 931, and the pressing plate is in contact with the annular flange 9222. In this way, a first waterproof structure is formed between the pressing plate and the skirt 922, and a second waterproof structure is formed between the skirt 922 and the side wall of the shell 20, thereby achieving a good waterproof effect.

[0054] For further information, see Figures 5 to 7 The outer wall of the housing 20 is formed with a groove 22 arranged circumferentially around the through hole 21. The annular flange 9222 is inserted into the groove 22, and the annular flange 9222 is in close contact with the inner wall of the groove 22. Specifically, the annular flange 9222 is similar to an O-ring, which is installed in the groove 22 and can play a good waterproof role. In addition, during the pressing process of the key 92, the annular flange 9222 is always clamped and fixed between the pressure plate and the housing 20, and remains stationary, thereby ensuring the stability of the key 92 during the pressing process.

[0055] For further information, see Figures 5 to 7, the pressure plate is fixedly mounted on the outer wall of the housing 20 through a mounting member 932. Specifically, the mounting member 932 is a screw, a bolt, a pin, etc. In order to improve the sealing performance of the housing 20, the first mounting hole of the housing 20 used to match the mounting member 932 is a blind hole, which can prevent water outside the housing 20 from entering the housing 20 through the first mounting hole, thereby ensuring the sealing performance.

[0056] For further information, see Figures 5 to 7 The housing 20 is provided with a recess 23 adapted to the pressing plate, and the pressing plate is installed in the recess 23. In this way, after the pressing plate is installed in the recess 23, the surface of the pressing plate is flush with the outer side wall of the housing 20, and the product performance is improved.

[0057] In one embodiment, see Figures 5 to 7 , the pressing plate is fixedly mounted on the housing 20 through more than two mounting members 932. In this way, the pressing plate can be relatively stably mounted on the outer side wall of the housing 20, so that the end of the skirt 922 is pressed against the outer side wall of the housing 20.

[0058] Optionally, the button 92 is made of silicone, rubber, PE, BOPP, PET or PVC. PE is a polycarbonate in Chinese, and PET is a polyethylene terephthalate in Chinese. Both PE and PET have high transparency, excellent insulation properties and are insoluble in water at room temperature. BOPP is a biaxially oriented polypropylene film with high transparency and gloss, excellent coating adhesion, excellent water vapor and grease barrier properties, and excellent insulation properties. PVC is a polyvinyl chloride resin with good flexibility, excellent insulation and waterproof properties. Any material can be used to prepare a button 92 with elastic waterproof insulation properties.

[0059] For further information, see Figure 4 The switch circuit board 70 is provided with a second terminal 71, which is electrically connected to the first terminal 113 through a wire. In order to make the structure more compact, the shielding cover 40 is provided with an avoidance step 43 corresponding to the second terminal 71, and the second terminal 71 is located on the avoidance step 43.

[0060] For further information, see Figure 5 and Figure 6, the insulating cover 80 is arranged outside the switch circuit board 70, and is located between the switch circuit board 70 and the button 92. Specifically, the insulating cover 80 is an elastic insulating cover. In this way, when the button 92 is pressed, the micro switch 94 in the insulating cover 80 can be driven to operate normally, and the micro switch 94 triggered by the button 92 will not be affected. Furthermore, the insulating cover 80 is consistent with the surface shape of the switch circuit board 70. In this way, it can better ensure that the micro switch 94 in the insulating cover 80 can be driven to operate normally during the pressing process of the button 92, thereby improving product performance. Optionally, the insulating cover 80 is a silicone body, a rubber body, a PE body, a BOPP body, a PET body or a PVC body.

[0061] For further information, see Figure 1 and Figure 2 The above-mentioned endoscope camera head also includes a second connecting member 95. The second connecting member 95 is used to fix the rigid circuit board 11 adjacent to the base body 31 to the base body 31. The second connecting member 95 can be a screw, a bolt, a screw or a pin, etc. Among them, the rigid circuit board 11 adjacent to the base body 31 is provided with a second mounting hole 114, and the remaining rigid circuit boards 11 are provided with a notch 115 corresponding to the second mounting hole 114, and the notch 115 is located at the edge of the rigid circuit board 11, so that the rigid circuit board 11 can be easily fixed to the end surface of the base body 31 through the second connecting member 95.

[0062] The degree of close contact in the above-mentioned embodiments is such that there is no gap between the contact surfaces of the two objects, thereby achieving a waterproof effect.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An endoscope camera head, characterized in that: It includes a camera control mainboard structure, and also includes a shell, a support seat, a shielding cover, a lens and a cable, wherein the support seat is arranged in the shell, the lens is arranged on the support seat, the camera control mainboard structure is arranged in the shielding cover, one end of the cable is electrically connected to an external host, and the other end of the cable passes through the shell and the shielding cover in sequence and then is electrically connected to the camera control mainboard structure; The camera control mainboard structure includes: Rigid circuit boards and flexible circuit boards, the number of the rigid circuit boards being more than two, the two or more rigid circuit boards being arranged in sequence and spaced apart, adjacent rigid circuit boards being arranged face to face, and adjacent rigid circuit boards being electrically connected via the flexible circuit board; A positioning member, the positioning member is connected to the rigid circuit board, and the positioning member is used to keep adjacent rigid circuit boards at a preset interval; A switch circuit board and an insulating cover, wherein the switch circuit board is arranged in the housing, and the switch circuit board is mounted on the support seat; and the insulating cover is arranged on the switch circuit board; Wherein, the support seat includes a seat body, one end face of the seat body is provided with an axial hole, the rigid circuit board adjacent to the seat body is in conflict with one end face of the seat body, an image sensor is arranged on the rigid circuit board, and the image sensor is located in the axial hole; the support seat also includes a sleeve body circumferentially arranged around one end of the seat body, the mouth of the shielding cover faces the seat body, and the shielding cover is arranged in the sleeve body.

2. The endoscope camera head according to claim 1, characterized in that: The positioning member is provided with two or more first snap-in openings at intervals in sequence, and the two or more first snap-in openings correspond to the two or more rigid circuit boards one by one, and the rigid circuit boards are clamped in the first snap-in openings.

3. The endoscope camera head according to claim 2, characterized in that: The board edge of the rigid circuit board is provided with a second bayonet corresponding to the first bayonet, and the positioning member is clamped in the second bayonet.

4. The endoscope camera head according to claim 1, characterized in that: The positioning member is provided with two or more clamping members in sequence and at intervals, the two or more clamping members correspond to the two or more rigid circuit boards one by one, and the rigid circuit boards are clamped by the clamping members.

5. The endoscope camera head according to claim 1, characterized in that: There are more than two positioning members.

6. The endoscopic camera head according to any one of claims 1 to 5, characterized in that: There are three rigid circuit boards and two flexible circuit boards, one of which is electrically connected to one end of the rigid circuit board in the middle, and one of which is also electrically connected to the end of the rigid circuit board on one side; another flexible circuit board is electrically connected to the other end of the rigid circuit board in the middle, and another flexible circuit board is also electrically connected to the end of the rigid circuit board on the other side.

7. The endoscope camera head according to claim 1, characterized in that: The inner surface of the insulating cover matches the surface of the switch circuit board facing away from the support seat; a gap is provided between the outer side wall of the insulating cover and the inner side wall of the shell.

8. The endoscope camera head according to claim 1, characterized in that: The endoscope camera head also includes a first connecting member; the first connecting member connects the insulating cover, the switch circuit board and the support base.

9. The endoscope camera head according to claim 1, characterized in that: The outer wall of the seat body is sealed with the inner wall of the shell.

10. The endoscope camera head according to claim 1, characterized in that: A first opening is provided on the top wall of the shielding cover, and a first wiring terminal corresponding to the first opening is provided on the rigid circuit board adjacent to the top wall, and the first wiring terminal is arranged in the first opening.

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