A fixing structure of a PCB board for a capsule endoscope

Abstract

The utility model discloses a kind of fixing structure of capsule endoscope PCB, including main casing and auxiliary casing, main casing and auxiliary casing are fixed by detachable mode, PCB board group is fixed in main casing, board group includes first plate body, extrusion ring and third plate body, and for connecting first plate body, second plate body and third plate body several connecting wires, respectively for the radial and axial limit fixing of first plate body.The utility model is fixed by setting fixed component, glue flows into the further adhesion fixed main casing and auxiliary casing of thread structure, improve fixing strength;By the limit of the uppermost layer PCB board of cannula, PCB board axial shift can be avoided;By recess and lug on plate body are inserted into cooperation, to limit the radial movement of PCB board, the above-mentioned structure multidirectional is fixed to PCB board, and fixed effect is good, to solve the problem such as mechanical buckle fixing difficult accurate matching PCB board size, and high temperature easy to damage electronic component of welding fixation.

Description

Technical Field

[0001] This utility model relates to the field of capsule endoscopy technology, and in particular to a fixing structure for a PCB board used in capsule endoscopy. Background Technology

[0002] In clinical medicine, gastroscopy is commonly used to obtain images of the stomach inside the body, and manometry is used to detect gastric motility. Medical radio-guided endoscopy systems include capsule endoscopes, data loggers, and imaging workstations. The working principle is that the patient orally ingests an endoscope capsule with a built-in camera and signal transmission device. The capsule moves through the digestive tract with the help of peristalsis and takes images. Doctors use external data loggers and imaging workstations to understand the patient's entire digestive tract and make a diagnosis.

[0003] Currently, the most common fixing methods are mechanical clips or welding. However, mechanical clip fixing is difficult to precisely match the PCB board size, and insufficient clamping force can cause loosening and affect signal transmission. Excessive clamping force can damage the PCB board and cannot effectively limit axial movement. Although welding fixing is strong, high temperature can easily damage electronic components and is not conducive to disassembly and maintenance. Therefore, a fixing structure for PCB board of capsule endoscope is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a PCB board fixing structure for capsule endoscopy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fixing structure for a PCB board for a capsule endoscope, comprising a main shell and a secondary shell, the main shell and the secondary shell being fixed in a detachable manner, a PCB board assembly fixed inside the main shell, the board assembly comprising a first plate body, a compression ring and a third plate body, and a plurality of connecting lines for connecting the first plate body, the second plate body and the third plate body; and a fixing component disposed between the main shell and the secondary shell, the fixing structure comprising a protrusion and a compression ring, respectively used for radial and axial limiting and fixing of the first plate body.

[0006] As a further description of the above technical solution: the fixing component also includes a fitting groove formed on the top wall of the main housing, a fitting ring adapted to the size of the fitting groove is fixedly connected to the bottom wall of the sub-housing, and an insertion tube is fixedly connected to the bottom of the sub-housing, and the insertion tube and the main housing are fixed by a threaded structure; when the sub-housing and the main housing are fixed, the bottom end of the compression ring and the top end of the first plate are in contact; the size of the insertion tube is smaller than the size of the main housing, and when the sub-housing and the main housing are fixed, the insertion tube is located inside the main housing.

[0007] As a further description of the above technical solution: the main housing has several main channels that communicate with the fitting groove, and one end of the main channel has several sub-channels that communicate with the threaded structure.

[0008] As a further description of the above technical solution: the inner wall of the main shell is provided with grooves, and there are at least two grooves, which are arranged opposite to each other. The peripheral sidewalls of the first plate, the second plate and the third plate are all provided with grooves, and the grooves and protrusions are matched in size.

[0009] As a further description of the above technical solution: several sliding rods are slidably connected to the bottom end of the cannula, and a compression ring is fixedly connected to the bottom end of the several sliding rods, and springs are sleeved on the several sliding rods.

[0010] This utility model has the following beneficial effects: 1. Compared with existing technologies, the fixing structure of this PCB board for capsule endoscopy improves the fixing strength by setting fixing components, allowing glue to flow into the threaded structure to further bond and fix the main shell and the sub-shell; limiting the uppermost PCB board by inserting tubes can prevent axial movement of the PCB board; and restricting the radial movement of the PCB board by inserting and engaging the grooves and protrusions on the board. The above structure fixes the PCB board in multiple directions with good fixing effect, thus solving the problems of mechanical buckle fixing being difficult to accurately match the PCB board size, resulting in insufficient clamping force leading to loosening and affecting signal transmission, and the high temperature of soldering fixing easily damaging electronic components.

[0011] 2. Compared with the prior art, the fixing structure of the PCB board for capsule endoscopy is provided by setting a compression ring and several springs. When multiple PCB boards move axially, the springs and compression ring cooperate to compensate for the increased space. The compression ring compresses the PCB board to keep the PCB board fixed. The several springs are evenly arranged to prevent the compression ring from tilting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the fixing structure of the PCB board for capsule endoscope proposed in this utility model; Figure 2 This is a first-view cross-sectional structural diagram of the fixing structure of a PCB board for a capsule endoscope proposed in this utility model. Figure 3 This is a second-view cross-sectional structural diagram of the fixing structure of a PCB board for a capsule endoscope proposed in this utility model. Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 2 Enlarged structural diagram at point B.

[0013] Legend: 1. Main shell; 2. Sub-shell; 3. First plate; 4. Connecting line; 5. Protrusion; 6. Groove; 7. Insert tube; 8. Threaded structure; 9. Fitting groove; 10. Fitting ring; 11. Main channel; 12. Sub-channel; 13. Slide rod; 14. Compression ring; 15. Spring; 16. Second plate; 17. Third plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Reference Figures 1-5 The present invention provides a fixing structure for a PCB board for a capsule endoscope: it includes a main shell 1 and a secondary shell 2, which are fixed in a detachable manner. A PCB board assembly is fixed inside the main shell 1. The assembly includes a first plate 3, a compression ring 14 and a third plate 17, and several connecting lines 4 for connecting the first plate 3, the second plate 16 and the third plate 17. It also includes a fixing component, which is disposed between the main shell 1 and the secondary shell 2. The fixing structure includes a protrusion 5 and a compression ring 14, which are used to radially and axially limit and fix the first plate 3, respectively.

[0016] The fixing assembly also includes a fitting groove 9 formed on the top wall of the main housing 1, a fitting ring 10 that matches the size of the fitting groove 9 is fixedly connected to the bottom wall of the sub-housing 2, and a tube 7 is fixedly connected to the bottom of the sub-housing 2, and the tube 7 and the main housing 1 are fixed together by a threaded structure 8.

[0017] The main housing 1 has several main channels 11 that communicate with the fitting grooves 9. One end of each main channel 11 has several sub-channels 12 that communicate with the threaded structure 8. By setting the fitting rings 10, the fitting grooves 9, and the channels, in use, multiple plates are first installed in the main housing 1 in sequence. Then, glue is added to the fitting grooves 9, and then the sub-housing 2 is screwed on. During this process, the fitting rings 10 on the sub-housing 2 squeeze the glue in the fitting grooves 9, so that the glue flows into the main channels 11 and the sub-channels 12 more quickly. The advantage of this setting is that the glue can be used to bond and fix the main housing 1 and the sub-housing 2 at the threaded structure, thereby further improving the fixing strength.

[0018] The size of the insertion tube 7 is smaller than that of the main housing 1. When the secondary housing 2 and the main housing 1 are fixed, the insertion tube 7 is located inside the main housing 1. When the secondary housing 2 and the main housing 1 are fixed, the bottom end of the compression ring 14 and the top end of the first plate 3 are in contact. The insertion tube 7 limits the uppermost PCB board, which can prevent the PCB board from moving axially.

[0019] The inner wall of the main housing 1 is fixedly connected with a protrusion 5 and is arranged opposite to each other. The side walls of the first plate 3, the second plate 16 and the third plate 17 are all provided with grooves 6. The grooves 6 and the protrusions 5 are matched in size. By setting the protrusions 5 and the grooves 6, when multiple plates are installed, the grooves 6 and the protrusions 5 on the plates are inserted and matched, thereby restricting the radial movement of the PCB board.

[0020] The bottom end of the insertion tube 7 is slidably connected to several sliding rods 13. The bottom ends of the sliding rods 13 are all fixedly connected to a compression ring 14, and each of the sliding rods 13 is fitted with a spring 15. After multiple PCB boards and other structures are installed in the main housing 1, the internal space of the housing will increase due to installation limitations or internal structural displacement. By setting the compression ring 14 and several springs 15, when multiple PCB boards move axially, the springs 15 and the compression ring 14 cooperate to compensate for the increased space. The compression ring 14 compresses the PCB boards to keep them fixed. The several springs 15 are evenly distributed to prevent the compression ring 14 from tilting.

[0021] Working principle: In use, multiple boards are first installed in the main housing 1 in sequence, and the grooves 6 and protrusions 5 on the boards are inserted and matched to restrict the radial movement of the PCB board. Then, glue is added to the fitting groove 9, and then the sub-housing 2 is screwed on. During this process, the fitting ring 10 on the sub-housing 2 squeezes the glue in the fitting groove 9, so that the glue flows into the main channel 11 and the sub-channel 12 faster. The advantage of this setting is that the glue can further bond and fix the main housing 1 and the sub-housing 2 at the threaded structure, thereby improving the fixing strength.

[0022] When multiple PCB boards move axially, the spring 15 and the compression ring 14 cooperate to compensate for the increased space, and the compression ring 14 compresses the PCB board to keep it fixed; and several springs 15 are evenly arranged to prevent the compression ring 14 from tilting.

[0023] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing structure for a PCB board used in a capsule endoscope, comprising a main shell (1) and a secondary shell (2), characterized in that: The main housing (1) and the sub-housing (2) are fixed in a detachable manner. A PCB board assembly is fixed inside the main housing (1). The board assembly includes a first board body (3), a compression ring (14) and a third board body (17), as well as several connecting lines (4) for connecting the first board body (3), the second board body (16) and the third board body (17). It also includes a fixing component, which is disposed between the main housing (1) and the sub-housing (2). The fixing structure includes a protrusion (5) and a compression ring (14), which are used to radially and axially limit and fix the first plate (3), respectively.

2. The fixing structure of a PCB board for a capsule endoscope according to claim 1, characterized in that: The fixing assembly also includes a fitting groove (9) on the top wall of the main housing (1), a fitting ring (10) that matches the size of the fitting groove (9) is fixedly connected to the bottom wall of the sub-housing (2), and a tube (7) is fixedly connected to the bottom of the sub-housing (2), and the tube (7) and the main housing (1) are fixed together by a threaded structure (8).

3. The fixing structure of a PCB board for a capsule endoscope according to claim 2, characterized in that: The main housing (1) has several main channels (11) that communicate with the fitting groove (9), and one end of the main channel (11) has several sub-channels (12) that communicate with the threaded structure (8).

4. The fixing structure of a PCB board for a capsule endoscope according to claim 3, characterized in that: The inner wall of the main shell (1) is provided with a groove (6), and there are at least two grooves (6) arranged opposite to each other. The side walls of the first plate (3), the second plate (16) and the third plate (17) are all provided with grooves (6), and the grooves (6) and the protrusions (5) are matched in size.

5. The fixing structure of a PCB board for a capsule endoscope according to claim 4, characterized in that: The bottom end of the insertion tube (7) is slidably connected to several sliding rods (13), and the bottom ends of several sliding rods (13) are fixedly connected to a compression ring (14), and springs (15) are sleeved on several sliding rods (13).

6. The fixing structure of a PCB board for a capsule endoscope according to claim 5, characterized in that: When the sub-shell (2) and the main shell (1) are fixed, the bottom end of the compression ring (14) and the top end of the first plate (3) are in contact.

7. The fixing structure of a PCB board for a capsule endoscope according to claim 6, characterized in that: The size of the cannula (7) is smaller than that of the main housing (1). When the secondary housing (2) and the main housing (1) are fixed, the cannula (7) is located inside the main housing (1).

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