Endoscope and circuit board connecting structure thereof

Abstract

The utility model relates to an endoscope and a circuit board connecting structure thereof. The circuit board connecting structure comprises a first circuit board, a second circuit board and a board-to-board connector, wherein the first circuit board and the second circuit board are oppositely arranged along a first direction; the board-to-board connector is positioned between the first circuit board and the second circuit board; the board-to-board connector comprises a male end connector and a female end connector, the male end connector is arranged on the first circuit board, and the female end connector is arranged on the second circuit board; the circuit board connecting structure further comprises a fastener, the fastener comprises a main body part and two elastic clamping parts, and the two elastic clamping parts are arranged at the two ends of the main body part in the second direction respectively. The main body part abuts against the side, away from the second circuit board, of the first circuit board. The two elastic clamping parts abut against the two ends, in the second direction, of the second circuit board through elastic force respectively. According to the circuit board connecting structure of the endoscope, the male end connector and the female end connector can be in good contact, and stable signal transmission between the lens assembly and the host is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an endoscope and a circuit board connection structure thereof. Background Art

[0002] Image transmission is required between the lens assembly and the host of a medical endoscope. A common practice in the prior art is to connect the lens assembly to the circuit board of the endoscope handle via a signal line, and then connect the circuit board of the endoscope handle to the host, thereby achieving signal transmission between the lens assembly and the host. The signal line and the circuit board of the endoscope handle are connected via a board-to-board connector. The board-to-board connector includes a male connector and a female connector. A male connector is provided on the signal line connected to the lens assembly, and a female connector is provided on the circuit board of the endoscope handle. By plugging the male connector into the female connector, the lens assembly and the endoscope handle can achieve signal connection.

[0003] However, the male connector and the female connector are plug-in compatible and can easily become loose due to external forces, resulting in poor contact and interruption of signal transmission between the lens assembly and the host. Utility Model Content

[0004] Based on this, it is necessary to provide an endoscope and its circuit board connection structure to address the problem in the prior art that the male connector on the signal line connected to the lens assembly and the female connector on the circuit board of the endoscope handle are easily loosened under the action of external force, resulting in poor contact, which leads to interruption of signal transmission between the endoscope and the host.

[0005] A circuit board connection structure for an endoscope, the circuit board connection structure comprising a first circuit board and a second circuit board arranged relative to each other along a first direction, and a board-to-board connector located between the first circuit board and the second circuit board, the first direction being the thickness direction of the first circuit board and the second circuit board; the board-to-board connector comprising a male connector and a female connector, the male connector being provided on the first circuit board, the female connector being provided on the second circuit board, the male connector being pluggable with the female connector;

[0006] The circuit board connection structure also includes a fastener, which includes a main body and two elastic clip parts, and the two elastic clip parts are respectively arranged at both ends of the main body along the second direction; the main body abuts against the side of the first circuit board facing away from the second circuit board; the two elastic clip parts abut against the two ends of the second circuit board along the second direction through elastic force; the second direction is perpendicular to the first direction.

[0007] In one embodiment, a clamping groove is provided on one side of the two elastic clamping portions facing each other; and two ends of the second circuit board along the second direction abut against groove walls of the two clamping grooves respectively.

[0008] In one embodiment, the groove wall of each of the snap-fitting grooves includes a bottom wall and two opposite side walls; the two ends of the second circuit board along the second direction respectively abut against the bottom walls of the two snap-fitting grooves; and the two sides of the second circuit board facing the first direction respectively abut against the two side walls of the snap-fitting grooves.

[0009] In one embodiment, two ends of the second circuit board along the second direction are respectively provided with limiting grooves corresponding to the elastic clamping portion, and the elastic clamping portion is located in the corresponding limiting grooves.

[0010] In one embodiment, the fastener includes a blocking portion, which is fixedly connected to the main body portion and protrudes from the main body portion, and the blocking portion is disposed around the board-to-board connector.

[0011] In one embodiment, the enclosure portion includes a first protrusion and a second protrusion arranged opposite to each other along the second direction, the board-to-board connector is located between the first protrusion and the second protrusion, and the ends of the first protrusion and the second protrusion facing away from the main body portion are both in contact with the second circuit board.

[0012] In one embodiment, a first limiting portion is provided at one end of the main body portion along the third direction, and the first limiting portion protrudes from the main body portion along the first direction toward the second circuit board, so that the board-to-board connector is opposite to the first limiting portion along the third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0013] In one embodiment, a second limiting portion is provided on the second circuit board, and the second limiting portion is located on a side of the first limiting portion facing away from the board-to-board connector.

[0014] In one embodiment, a glue injection groove is provided on the main body portion, and the glue injection groove passes through the two side surfaces of the main body portion facing the first direction, and is used for injecting sealant between the main body portion and the second circuit board.

[0015] An endoscope, a lens assembly, a signal line, an endoscope handle, and a circuit board connection structure according to any one of the above embodiments, wherein one end of the signal line is connected to the lens assembly, the other end of the signal line is connected to the first circuit board, and the second circuit board is arranged on the endoscope handle.

[0016] The circuit board connection structure of the endoscope described above allows the fastener to be securely connected to the second circuit board because the two elastic snap-fitting portions abut against both ends of the second circuit board along the second direction through elastic force. Furthermore, because the main body abuts against the side of the first circuit board facing away from the second circuit board, the fastener simultaneously applies a force toward the second circuit board on the first circuit board, thereby enabling the male connector on the first circuit board to reliably connect with the female connector on the second circuit board along the first direction, preventing them from becoming loose. This ensures good contact between the male and female connectors, facilitating stable signal transmission between the lens assembly and the host computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A cross-sectional view of a circuit board connection structure according to an embodiment.

[0018] Figure 2 This is a structural exploded view of a circuit board connection structure according to an embodiment.

[0019] Figure 3 FIG. 4 is a schematic diagram of a circuit board connection structure according to another embodiment.

[0020] Figure 4 for Figure 3 A schematic structural diagram of a fastener according to the embodiment shown.

[0021] Description of reference numerals:

[0022] Z, first direction; X, second direction; Y, third direction;

[0023] 100. a first circuit board;

[0024] 200, second circuit board; 210, limiting groove;

[0025] 300, board-to-board connector; 310, male connector; 320, female connector;

[0026] 400, fastener; 410, main body; 411, first limiting portion; 412, glue injection groove; 420, elastic clamping portion; 421, clamping groove; 4211, bottom wall; 4212, first side wall; 4213, second side wall;

[0027] 510, first protrusion; 520, second protrusion; 530, third protrusion. DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0034] Please refer to Figure 1 and Figure 2 An embodiment of the present application provides a circuit board connection structure for an endoscope, the circuit board connection structure comprising a first circuit board 100 and a second circuit board 200 arranged relative to each other along a first direction Z, and a board-to-board connector 300 located between the first circuit board 100 and the second circuit board 200. The first circuit board 100 and the second circuit board 200 are arranged in parallel, and the first direction Z is the thickness direction of the first circuit board 100 and the second circuit board 200. The board-to-board connector 300 comprises a male connector 310 and a female connector 320. The male connector 310 is provided on the first circuit board 100, and the female connector 320 is provided on the second circuit board 200. The male connector 310 and the female connector 320 are pluggable and mated.

[0035] The circuit board connection structure also includes a fastener 400, which includes a main portion 410 and two elastic snap-fit portions 420. The two elastic snap-fit portions 420 are respectively provided at both ends of the main portion 410 along the second direction X. The main portion 410 abuts against the side of the first circuit board 100 facing away from the second circuit board 200. The two elastic snap-fit portions 420 abut against both ends of the second circuit board 200 along the second direction X through elastic force. The second direction X is perpendicular to the first direction Z.

[0036] The circuit board connection structure for an endoscope is used in an endoscope, which includes a lens assembly, a signal cable, and an endoscope handle. One end of the signal cable is connected to the lens assembly, and the first circuit board 100 is connected to the other end of the signal cable. The second circuit board 200 is provided in the endoscope handle.

[0037] Because the two elastic engaging portions 420 respectively abut against both ends of the second circuit board 200 along the second direction X through elastic force, the fastener 400 is securely connected to the second circuit board 200. Furthermore, because the main body 410 abuts against the side of the first circuit board 100 facing away from the second circuit board 200, the fastener 400 simultaneously applies a force toward the second circuit board 200 to the first circuit board 100, thereby reliably plugging the male connector 310 on the first circuit board 100 and the female connector 320 on the second circuit board 200 along the first direction Z, preventing them from becoming loose. This ensures good contact between the male connector 310 and the female connector 320, facilitating stable signal transmission between the lens assembly and the host computer.

[0038] The elastic clamping portion 420 can be made of an elastic material such as plastic or rubber. When assembling the circuit board connection structure of the endoscope, the fastener 400 can be pressed down along the first direction Z toward the first circuit board 100, and the two elastic clamping portions 420 can be elastically deformed in a direction away from each other, so that the second circuit board 200 can enter between the two elastic clamping portions 420. After the external force is removed, the two elastic clamping portions 420 can restore their deformation under the action of the elastic restoring force and respectively abut against the two ends of the second circuit board 200 along the second direction X. At the same time, the main body 410 abuts against the side of the first circuit board 100 facing away from the second circuit board 200. It can be seen that the fastener in the embodiment of the present application is easy to assemble with the first circuit board 100 and the second circuit board 200.

[0039] Please refer to Figure 1 and Figure 2 In one embodiment, the two elastic engaging portions 420 are each provided with an engaging groove 421 on one side facing each other. The openings of the two engaging grooves 421 face each other along the second direction X. The ends of the second circuit board 200 along the second direction X abut against the groove walls of the two engaging grooves 421. Thus, the ends of the second circuit board 200 along the second direction X are respectively inserted into the two engaging grooves 421, thereby ensuring a more secure fit between the fastener 400 and the second circuit board 200.

[0040] Please refer to Figure 1 and Figure 2In one embodiment, the groove wall of each engaging groove 421 includes a bottom wall 4211 facing the second direction X and two opposing side walls along the first direction Z. The opposing side walls are a first side wall 4212 and a second side wall 4213. The two ends of the second circuit board 200 along the second direction X abut against the bottom walls 4211 of the two engaging grooves 421, respectively. The two sides of the second circuit board 200 facing the first direction Z abut against the two side walls of the engaging grooves 421, respectively. In this way, the bottom walls 4211 of the two engaging grooves 421 can reliably position the second circuit board 200 along the second direction X, and the two side walls of each engaging groove 421 can reliably position the second circuit board 200 along the first direction Z, thereby ensuring a more secure fit between the second circuit board 200 and the fastener 400, and thereby ensuring a more secure fit between the male connector 310 of the first circuit board 100 and the female connector 320 of the second circuit board 200.

[0041] Please refer to Figure 2 In one embodiment, the second circuit board 200 is provided with limiting grooves 210 corresponding to the elastic snap-fitting parts 420 at both ends along the second direction X. The two limiting grooves 210 are arranged in a one-to-one correspondence with the two elastic snap-fitting parts 420. The openings of the limiting grooves 210 face the second direction X, and the openings of the two limiting grooves 210 are arranged opposite to each other. The elastic snap-fitting parts 420 are located in the corresponding limiting grooves 210. In this way, the two side walls of the limiting grooves 210 along the third direction Y can limit the corresponding elastic snap-fitting parts 420, preventing the elastic snap-fitting parts 420 from shifting along the third direction Y, thereby further ensuring that the male connector 310 of the first circuit board 100 and the female connector 320 of the second circuit board 200 are firmly matched. The third direction Y is perpendicular to the first direction Z and perpendicular to the second direction X.

[0042] Please refer to Figure 1 and Figure 2 In one embodiment, the fastener 400 includes a retaining portion that is fixedly connected to the main body 410 and protrudes from the main body 410. The retaining portion surrounds the board-to-board connector 300. The retaining portion protects the board-to-board connector 300. Sealant is injected into the area enclosed by the retaining portion to seal the board-to-board connector 300, thereby waterproofing the board-to-board connector 300.

[0043] Please refer to Figure 1 and Figure 2In one embodiment, the enclosure portion includes a first protrusion 510 and a second protrusion 520 disposed opposite each other along the second direction X. The first protrusion 510 and the second protrusion 520 both protrude from the main body 410 along the first direction Z and are located between the main body 410 and the second circuit board 200. The board-to-board connector 300 is located between the first protrusion 510 and the second protrusion 520, with the ends of the first protrusion 510 and the second protrusion 520 facing away from the main body 410 both abutting against the second circuit board 200. In this manner, injecting sealant between the first protrusion 510 and the second protrusion 520 allows the sealant to seal the board-to-board connector 300, thereby providing a waterproofing effect on the board-to-board connector 300.

[0044] Please refer to Figure 2 In one embodiment, the enclosure portion further includes a third protrusion 530 that protrudes from the main portion 410 along the third direction Y. The third protrusion 530 is connected to the first protrusion 510 and the second protrusion 520 at both ends along the second direction X. Furthermore, because the ends of the first protrusion 510 and the second protrusion 520 facing away from the main portion 410 abut against the second circuit board 200, the first protrusion 510, the second protrusion 520, the third protrusion 530, and the second circuit board 200 form a glue injection port, through which sealant can be injected into the enclosure portion. A third protrusion 530 is provided on each side of the main portion 410 facing the third direction Y, thereby fully enclosing and sealing the board-to-board connector 300.

[0045] Please refer to Figure 3 and Figure 4 In another embodiment, a first limiting portion 411 is provided at one end of the main body 410 along the third direction Y, and the first limiting portion 411 protrudes from the main body 410 along the first direction Z toward the second circuit board 200, so that the board-to-board connector 300 is opposite to the first limiting portion 411 along the third direction Y, so that the board-to-board connector 300 can limit the first limiting portion 411 along the third direction Y, that is, limit the fastener 400 along the third direction Y, and prevent the fastener 400 from shifting along the third direction Y toward the direction close to the board-to-board connector 300.

[0046] Furthermore, a second limiting portion (not shown) is provided on the second circuit board 200. The second limiting portion is located on a side of the first limiting portion 411 facing away from the board-to-board connector 300. That is, the first limiting portion 411 is located between the second limiting portion and the board-to-board connector 300 along the third direction Y. In this manner, the first limiting portion 411 can be bidirectionally limited along the third direction Y, thereby more reliably ensuring the accurate positioning of the fastener 400 along the third direction Y.

[0047] Please refer to Figure 3 and Figure 4In one embodiment, the main body 410 is provided with a glue injection groove 412. The glue injection groove 412 extends through both sides of the main body 410 in the first direction Z and is used to inject sealant between the main body 410 and the second circuit board 200. Specifically, the sealant is injected between the main body 410 and the second circuit board 200 through the glue injection groove 412, so that the sealant seals the board-to-board connector 300, thereby making the board-to-board connector 300 waterproof.

[0048] An embodiment of the present application provides an endoscope, comprising a lens assembly, a signal line, an endoscope handle, and a circuit board connection structure according to any of the above embodiments. One end of the signal line is connected to the lens assembly, and the other end of the signal line is connected to a first circuit board 100. A second circuit board 200 is disposed on the endoscope handle. The first circuit board 100 may be a PCB or an FPC board. The second circuit board 200 may be a PCB or an FPC board.

[0049] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0050] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A circuit board connection structure for an endoscope, characterized in that: The circuit board connection structure includes a first circuit board and a second circuit board arranged relative to each other along a first direction, and a board-to-board connector located between the first circuit board and the second circuit board, wherein the first direction is the thickness direction of the first circuit board and the second circuit board; the board-to-board connector includes a male connector and a female connector, wherein the male connector is provided on the first circuit board, and the female connector is provided on the second circuit board, and the male connector is plugged into and mated with the female connector; The circuit board connection structure also includes a fastener, which includes a main body and two elastic clip parts, and the two elastic clip parts are respectively arranged at both ends of the main body along the second direction; the main body abuts against the side of the first circuit board facing away from the second circuit board; the two elastic clip parts abut against the two ends of the second circuit board along the second direction through elastic force; the second direction is perpendicular to the first direction.

2. The circuit board connection structure according to claim 1, wherein: A clamping groove is provided on one side of the two elastic clamping parts facing each other; and two ends of the second circuit board along the second direction are respectively in contact with the groove walls of the two clamping grooves.

3. The circuit board connection structure according to claim 2, wherein: The groove wall of each of the clamping grooves includes a bottom wall and two opposite side walls; the two ends of the second circuit board along the second direction respectively abut against the bottom walls of the two clamping grooves; the two sides of the second circuit board facing the first direction respectively abut against the two side walls of the clamping grooves.

4. The circuit board connection structure according to claim 1, wherein: The second circuit board is provided with limiting grooves corresponding to the elastic clamping portion at both ends along the second direction, and the elastic clamping portion is located in the corresponding limiting grooves.

5. The circuit board connection structure according to claim 1, wherein: The fastener includes a blocking portion, which is fixedly connected to the main body portion and protrudes from the main body portion, and the blocking portion is arranged around the board-to-board connector.

6. The circuit board connection structure according to claim 5, wherein: The enclosure portion includes a first protrusion and a second protrusion arranged opposite to each other along the second direction, the board-to-board connector is located between the first protrusion and the second protrusion, and the ends of the first protrusion and the second protrusion facing away from the main body portion are both in contact with the second circuit board.

7. The circuit board connection structure according to claim 1, wherein: A first limiting portion is provided at one end of the main body portion along the third direction, and the first limiting portion protrudes from the main body portion along the first direction toward the second circuit board, so that the board-to-board connector is opposite to the first limiting portion along the third direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

8. The circuit board connection structure according to claim 7, wherein: A second limiting portion is provided on the second circuit board, and the second limiting portion is located on a side of the first limiting portion away from the board-to-board connector.

9. The circuit board connection structure according to claim 1, wherein: The main body is provided with a glue injection groove, which passes through both side surfaces of the main body facing the first direction and is used for injecting sealant between the main body and the second circuit board.

10. An endoscope, characterized in that: It includes a lens assembly, a signal line, an endoscope handle and a circuit board connection structure according to any one of claims 1 to 9, one end of the signal line is connected to the lens assembly, the other end of the signal line is connected to the first circuit board, and the second circuit board is arranged on the endoscope handle.

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