Misinsertion prevention device, connection port, and electronic product

Abstract

The application provides a misinsertion prevention device, a connection port and electronic products. The misinsertion prevention device comprises a main body part, the main body part is in a plate shape, comprises an insertion end and a pre-installation end located at the opposite side of the insertion end in a first direction; and a wing part, the wing part is located at both sides of the main body part close to the pre-installation end, and is formed by extending outward from the edge of the main body part in a second direction, the insertion end is provided with a positioning part located at both sides of the insertion end in the second direction, and the edge of the pre-installation end and the edge of the wing part close to the pre-installation end are formed with a first limiting part. Through the embodiment of the application, the installation error is prevented, the operation convenience and practicality of customer installation are realized, and the cost is optimized.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to a misinsertion prevention device, a connection port, and an electronic product. Background Technology

[0002] Current products involving connectors, such as I / O modules in programmable logic controllers (PLCs) that include terminal blocks and housing units, require the terminal blocks to be inserted into the housing units and sometimes removed from them. Since the terminal blocks and housing units are in one-to-one correspondence, after removing the terminal blocks from the housing units, mis-insertion prevention tabs are inserted at the ports of both the terminal blocks and the housing units to prevent them from being mistakenly inserted into other housing units.

[0003] It should be noted that the above description of the background technology is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background technology section of this application. Utility Model Content

[0004] The inventors discovered that in the aforementioned prior art, the mis-insertion prevention pieces installed in the terminal block and housing unit are two different types of inserts. When inserting the mis-insertion prevention piece, it is necessary to remove the mis-insertion prevention piece from the two templates separately and then install it onto the corresponding terminal block or housing unit in sequence. Since the mis-insertion prevention piece is very small (usually only two or three millimeters in size), it is easy to confuse the two different types of mis-insertion prevention pieces and install them incorrectly. In addition, manufacturing two different types of mis-insertion prevention pieces also has the disadvantage of high cost.

[0005] To address one of the aforementioned problems or other similar issues, embodiments of this application provide an incorrect insertion prevention device, a connection port, and an electronic product. This device, with its specific incorrect insertion prevention structure, prevents installation errors, enhances customer ease of installation and practicality, and optimizes costs.

[0006] According to a first aspect of the present application, a mis-insertion prevention device is provided, wherein the mis-insertion prevention device includes: a main body portion, the main body portion being plate-shaped, including an insertion end and a pre-installation end located on the opposite side of the insertion end in a first direction; and wings, the wings being located on both sides of the main body portion near the pre-installation end, extending outward from the edge of the main body portion in a second direction, the insertion end being provided with positioning portions located on both sides of the insertion end in the second direction, and the edge of the pre-installation end and the edge of the wings near the pre-installation end forming a first limiting portion.

[0007] In some embodiments, the positioning portion is a protruding structure extending outward from at least a portion of the edges on both sides of the insertion end.

[0008] In some embodiments, the first limiting portion is formed as a stop surface that gradually slopes from the pre-installed end to the insertion end.

[0009] In some embodiments, a second limiting portion is formed at the edge of the wing away from the pre-installed end.

[0010] In some embodiments, the second limiting portion is formed as a stop surface that gradually slopes from the insertion end to the pre-installed end.

[0011] In some embodiments, the misinsertion prevention device further includes: a guide portion, which is formed on the upper side of the main body portion in a stacked manner with the main body portion, and extends in a plate shape from the pre-installed end of the main body portion to the insertion end of the main body portion. When viewed from a third direction, the guide portion is formed in a convex shape, and the width of the edge of the guide portion near the insertion end in a second direction is smaller than the width of the edge of the guide portion near the pre-installed end in a second direction.

[0012] In some embodiments, the edge of the guide near the pre-installed end, the edge of the pre-installed end, and the edge of the wing near the pre-installed end are collectively formed as the first limiting portion, and a third limiting portion is formed on the front end side of the maximum width of the convex shape of the guide, the third limiting portion being formed as a stop surface that gradually slopes from the insertion end to the pre-installed end.

[0013] According to a second aspect of the present application, a connection port is provided, the connection port comprising: the misinsertion prevention device described in the first aspect; a first port having a receiving groove for accommodating the misinsertion prevention device; and a second port engaging with the first port, the second port having a through hole for holding the misinsertion prevention device.

[0014] In some embodiments, the inner circumferential surface of the receiving groove is provided with a first abutting portion that is interference-fitted with the positioning portion in a second direction and a first limiting surface that is clearance-fitted with the first limiting portion in a first direction; the maximum distance between the inner circumferential surfaces of the receiving groove opposing each other in a second direction is equal to the width of the edge end of the wing in a second direction, and the distance between the inner circumferential surfaces of the receiving groove opposing each other in a third direction is equal to the maximum thickness of the wing in a third direction; the inner circumferential surface of the through hole of the second port is provided with a second abutting portion that is interference-fitted with the positioning portion in a second direction.

[0015] According to a second aspect of the embodiments of this application, an electronic product is provided, the electronic product including: the connection port described in the second aspect above.

[0016] One of the beneficial effects of the embodiments of this application is that, according to the embodiments of this application, the mis-insertion prevention device with the same structure can prevent installation errors with different other components and optimize costs; by setting a positioning part, the mis-insertion prevention device can be positioned and engaged with different other components; by setting a first limiting part, the mis-insertion prevention device can be limited when pre-installed (reverse-installed) with other components (e.g., terminal block), and it is also easy to insert it when installing with another component (e.g., housing unit), thereby satisfying the customer's operational convenience and practicality in installation.

[0017] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents. Attached Figure Description

[0018] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a perspective view of an embodiment of the misinsertion prevention device according to the first aspect of this application; Figure 2 This is a schematic diagram of an accidental insertion prevention device according to an embodiment of the first aspect of this application; Figure 3 This is yet another perspective view of the misinsertion prevention device according to an embodiment of the first aspect of this application; Figure 4 This is a schematic diagram of an accidental insertion prevention device according to an embodiment of the first aspect of this application; Figure 5 This is a schematic diagram of the connection port according to an embodiment of the second aspect of this application; Figure 6 This is a schematic diagram of the first port and the misinsertion prevention device according to an embodiment of the second aspect of this application; Figure 7 This is a schematic diagram of the second port and the misinsertion prevention device according to an embodiment of the second aspect of this application; Figure 8 yes Figure 6Enlarged view of the dashed box T1; Figure 9 yes Figure 7 Enlarged view of the dashed box T2; Figure 10 This is a schematic diagram of the receiving groove of the first port of an embodiment of the second aspect of this application; Figure 11 This is a schematic diagram of the through hole of the second port in an embodiment of the second aspect of this application.

[0019] Tag Name

[0020] 1: Accidental insertion prevention device; 10: Main body; 20: Wings; 30: Guiding section; 101: Insertion end; 102: Pre-installed terminal; 1011: Positioning section; 201: First limiting part; 202: Second limiting part; 301: Third limiting part; 5: Connect to the port; 6: First port (terminal block); 7: Second port (outer shell unit); 60: Receiving tank; 70: Through hole; 601: First contact section; 602: First limiting surface; 603: Second limiting surface; 701: Second contact section; 702: Third limiting surface. Detailed Implementation

[0021] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0022] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0023] In the embodiments of this application, the singular forms "a," "the," etc., including the plural forms, should be broadly understood as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms, unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0024] In the following description of this application, unless otherwise stated, the insertion direction of the mis-insertion prevention device will be referred to as the first direction (as follows). Figure 2 As shown by arrow A1 in the diagram, the direction from the pre-installed end to the insertion end is called "front" or "front side" or "front," and the direction from the insertion end to the pre-installed end is called "rear" or "rear side" or "rear." The direction perpendicular to the first direction and connecting the wing is called the second direction (as follows). Figure 2 (As shown by arrow A2 in the image), where, when observing along a third direction, Figure 2 The left side in the middle is called the "left side" or "left side". Figure 2 The right side is referred to as the "right side" or "right direction"; the direction perpendicular to both the first and second directions is referred to as the third direction (as follows). Figure 4 (As shown by arrow A3 in the diagram), the direction from the main body to the guide is referred to as "above," "upper side," or "up," and the direction from the guide to the main body is referred to as "below," "lower side," or "down." It is important to note that these are for illustrative purposes only and do not define the orientation of the mis-insertion prevention device, connection port, or electronic product during use and manufacture.

[0025] The embodiments of this application will now be described with reference to the accompanying drawings. These embodiments are merely exemplary and are not intended to limit the scope of this application.

[0026] First aspect of the embodiments

[0027] An embodiment of the first aspect of this application provides a device for preventing accidental insertion.

[0028] Figure 1This is a perspective view of a mis-insertion prevention device according to an embodiment of the first aspect of this application, showing a view of the mis-insertion prevention device viewed from the upper rear side; Figure 2 This is a schematic diagram of an incorrect insertion prevention device according to an embodiment of the first aspect of this application, showing a view of the incorrect insertion prevention device as viewed from above; Figure 3 This is another perspective view of the mis-insertion prevention device according to an embodiment of the first aspect of this application, showing a view of the mis-insertion prevention device viewed from the upper front; Figure 4 This is a schematic diagram of an accidental insertion prevention device according to an embodiment of the first aspect of this application, showing a view of the accidental insertion prevention device as viewed from the right side.

[0029] like Figure 1 and Figure 2 As shown, the misinsertion prevention device 1 may include a main body 10 and wings 20. The main body 10 is plate-shaped and includes an insertion end 101 and a pre-installation end 102 located on the opposite side of the insertion end 101 in a first direction A1. That is, the insertion end 101 is located on the front side and the pre-installation end 102 is located on the rear side. The wings 20 are located on both sides of the main body 10 near the pre-installation end 102 and are formed by extending outward from the edge of the main body 10 in a second direction A2. That is, the wings 20 include a left wing and a right wing. The left wing is formed by extending to the left from a part of the left edge end of the main body 10 (the part near the pre-installation end 102) and the right wing is formed by extending to the right from a part of the right edge end of the main body 10 (the part near the pre-installation end 102).

[0030] like Figure 1 and Figure 2 As shown, the insertion end 101 is provided with positioning portions 1011 on both sides of the insertion end 101 in the second direction A2, and the edge of the pre-installation end 102 and the edge of the wing portion 20 near the pre-installation end 102 are formed with first limiting portions 201.

[0031] According to the above embodiments, by using a mis-insertion prevention device with the same structure, installation errors with different other components can be prevented, and costs are optimized. By setting a positioning part, the mis-insertion prevention device can be positioned and engaged with different other components. By setting a first limiting part, the mis-insertion prevention device can be limited when pre-installed with other components (e.g., terminal block), and it is also easy to insert it when installing with another component (e.g., housing unit), thereby satisfying the customer's operational convenience and practicality in installation.

[0032] In the embodiments of this application, such as Figure 1 and Figure 2As shown, the positioning part 1011 is configured as a protruding structure extending outward from at least a portion of the edges on both sides of the insertion end 101. The positioning engagement of the misinsertion prevention device 1 with other components (e.g., terminal blocks) is achieved by the interference fit between the protruding structure and the inner circumferential surface of the component to be inserted by the misinsertion prevention device 1.

[0033] Regarding the positioning unit 1011, this application is not limited to... Figure 1 and Figure 2 The structure shown means that the positioning part 1011 of the insertion end 101 can be implemented by any structure. For example, it can be configured to engage with the component to be inserted by the insertion end 101 of the misinsertion prevention device 1, or the surfaces of the two ends of the insertion end 101 of the misinsertion prevention device 1 in the second direction A2 can be configured to have an interference fit with the inner circumferential surface of the component to be inserted by the misinsertion prevention device 1, etc.

[0034] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, from a third party to A3 (such as...) Figure 4 When observed (as shown), the protruding structure of the positioning part 1011 is set as a semi-circle, but this application is not limited to this. For example, it can also be other shapes such as triangle, trapezoid, or swallowtail.

[0035] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, the first limiting part 201 is formed as a stop surface that gradually slopes from the pre-installed end 102 to the insertion end 101. In other words, the first limiting part 201 gradually slopes from the rear side to the front side. In this way, when the pre-installed end 102 is pre-installed to other components, the position of the mis-insertion prevention device 1 and the other components in the first direction A1 can be easily limited.

[0036] However, this application is not limited to the structure of the stop surface shown in the figure. That is to say, the first limiting part 201 can be implemented by any limiting structure.

[0037] In the embodiments of this application, such as Figure 2 and Figure 3 As shown, a second limiting portion 202 is formed on the edge of the wing portion 20 away from the pre-installed end 102. By providing the second limiting portion 202, the mis-insertion prevention device 1 can be limited in the first direction A1 when it is inserted and installed with other components (e.g., terminal blocks). In other words, the maximum depth to which the mis-insertion prevention device 1 can be inserted when it is inserted with other components is determined by the second limiting portion 202.

[0038] In the embodiments of this application, such as Figure 2 and Figure 3As shown, the second limiting part 202 is formed as a stop surface that gradually slopes from the insertion end 101 to the pre-installation end 102. In other words, the second limiting part 202 gradually slopes from the front side to the rear side. In this way, when the insertion end 101 is inserted into other components, the position of the mis-insertion prevention device 1 and the other components in the first direction A1 can be easily limited.

[0039] However, this application is not limited to the structure of the stop surface shown in the figure. That is to say, the second limiting part 202 can be implemented by any limiting structure.

[0040] In the embodiments of this application, such as Figures 1 to 4 As shown, the misinsertion prevention device 1 may further include: a guide portion 30, wherein the guide portion 30 is formed on the upper side of the main body portion 10 in a stacked manner with the main body portion 10, and extends in a plate shape from the pre-installation end 102 of the main body portion 10 to the insertion end 101 of the main body portion 10; that is, the guide portion 30 covers a part of the main body portion 10 (the part near the pre-installation end 102).

[0041] Because the size of the mis-insertion prevention device 1 is very small, by setting the guide part 30, that is, by increasing the thickness of the mis-insertion prevention device 1 in the third direction to a certain extent, the mis-insertion prevention device 1 can be easily grasped, thereby facilitating the installation of the mis-insertion prevention device 1.

[0042] like Figure 2 As shown, viewed from a third-party perspective (A3), the guide portion 30 is formed in a convex shape, and the width W1 of the edge of the guide portion 30 near the insertion end 101 in the second direction is smaller than the width W2 of the edge of the guide portion 30 near the pre-installation end 102 in the second direction. In this way, the convex shape of the guide portion 30, which is narrow at the front and wide at the back, makes it easy to insert the mis-insertion prevention device 1 into other components.

[0043] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, the edge of the guide portion 30 near the pre-installation end 102, the edge of the pre-installation end 102, and the edge of the wing portion 20 near the pre-installation end 102 are collectively formed into the first limiting portion 201.

[0044] like Figure 3 As shown, a third limiting part 301 is formed on the front end side of the maximum width of the convex shape of the guide part 30. That is, the third limiting part 301 is formed on the front end side of the guide part 30 at the junction of the width W1 and the width W2. Through the third limiting part 301, the mis-insertion prevention device 1 can be further limited in the first direction A1 when it is inserted and installed with other components (e.g., terminal block). In other words, the maximum depth that the mis-insertion prevention device 1 can be inserted into other components is determined by either the second limiting part 202 or the third limiting part 301.

[0045] In the embodiments of this application, such as Figure 2 and Figure 3 As shown, the third limiting part 301 is formed as a stop surface that gradually slopes from the insertion end 101 to the pre-installation end 102. In other words, the third limiting part 301 gradually slopes from the front side to the rear side. In this way, when the insertion end 101 is inserted into other components, the position of the mis-insertion prevention device 1 and the other components in the first direction A1 can be easily limited.

[0046] In this embodiment, chamfered structures are provided at the insertion end 101, pre-installation end 102, wing 20 and guide 30, which facilitates the insertion of the mis-insertion prevention device 1.

[0047] According to the embodiments of this application, by using the same structure of the mis-insertion prevention device 1 that can be inserted and adapted to different other components, installation errors with different other components can be prevented, and costs are optimized. By providing the positioning part 1011, the mis-insertion prevention device 1 can be positioned and engaged with different other components. By providing the first limiting part 201, the mis-insertion prevention device 1 can be limited when pre-installed with other components (e.g., terminal block), and it is also easy to insert it when installing with another component (e.g., housing unit), thereby satisfying the customer's operational convenience and practicality in installation.

[0048] Second aspect of the embodiments

[0049] An embodiment of the second aspect of this application provides a connection port. Figure 5 This is a schematic diagram of a connection port according to an embodiment of the second aspect of this application. Only a portion of the structure of the connection port is shown in the figure. Figure 6 This is a schematic diagram of the first port and the misinsertion prevention device according to an embodiment of the second aspect of this application; Figure 7 This is a schematic diagram of the second port and the misinsertion prevention device according to an embodiment of the second aspect of this application; Figure 8 yes Figure 6 Enlarged view of the dashed box T1; Figure 9 yes Figure 7 Enlarged view of the dashed box T2; Figure 10 This is a schematic diagram of the receiving groove of the first port of an embodiment of the second aspect of this application, showing a view of the receiving groove when viewed from the first direction; Figure 11 This is a schematic diagram of the through hole of the second port of an embodiment of the second aspect of this application, showing a view of the through hole when viewed from the first direction.

[0050] like Figures 5 to 9As shown, the connection port 5 may include: the misinsertion prevention device 1, the first port 6 and the second port 7 as described in the embodiments of the first aspect; wherein, the first port 6 has a receiving groove 60 for accommodating the misinsertion prevention device 1; the second port 7 is engaged with the first port 6 and has a through hole 70 for holding the misinsertion prevention device 1.

[0051] In the embodiments of the first aspect, the main structure of the misinsertion prevention device 1 has been described in detail, the contents of which are included herein and will not be repeated here.

[0052] According to the embodiments of this application, by inserting the same misinsertion prevention device 1 with the same structure that is compatible with both the first port 6 and the second port 7, installation errors with different ports can be prevented, and the cost is optimized, while satisfying the customer's requirements for ease of operation and practicality in installation.

[0053] In the embodiments of this application, such as Figure 10 As shown, the inner circumferential surface of the receiving groove 60 is provided with a first abutting part 601 that is interference-fitted with the positioning part 1011 in the second direction, and a first limiting surface 602 that is clearance-fitted with the first limiting part 201 in the first direction. Through the interference fit between the first abutting part 601 and the positioning part 1011, the mis-insertion prevention device 1 is fixed in the first port 6. Through the clearance fit between the first limiting surface 602 and the first limiting part 201, the mis-insertion prevention device 1 is limited to the first port 6 during pre-installation.

[0054] In the embodiments of this application, such as Figure 10 As shown, the first limiting surface 602 can also be clearance-fitted with the second limiting part 202 in the first direction, thus limiting the mis-insertion prevention device 1 and the first port 6 in the first direction when they are inserted and installed.

[0055] like Figure 10 As shown, the inner circumferential surface of the receiving groove 60 is also provided with a second limiting surface 603 that is clearance-fitted with the third limiting part 301 in the first direction. Through the clearance fit between the second limiting surface 603 and the third limiting part 301, the mis-insertion prevention device 1 and the first port 6 can be further limited in the first direction during insertion and installation. When the mis-insertion prevention device 1 and the first port 6 are pre-installed, the second limiting surface 603 can also be clearance-fitted with the first limiting part 201 (see...). Figure 8 This further limits the mis-insertion prevention device 1 and the first port 6 to a position in the first direction when they are pre-installed.

[0056] In the embodiments of this application, such as Figure 2 , Figure 4 and Figure 10As shown, the maximum distance D1 between the opposing inner circumferential surfaces of the receiving groove 60 in the second direction is approximately equal to the width D2 of the edge end of the wing 20 in the second direction, and the distance D3 between the opposing inner circumferential surfaces of the receiving groove 60 in the third direction is approximately equal to the maximum thickness D4 of the wing 20 in the third direction. Thus, through the frictional engagement between the opposing inner circumferential surfaces of the receiving groove 60 in the second direction and the edge end of the wing 20 in the second direction, and the frictional engagement between the opposing inner circumferential surfaces of the receiving groove 60 in the third direction and the edge end of the wing 20 in the third direction, the device will not fall out of the first port 6 when the mis-insertion prevention device 1 is pre-installed into the first port 6.

[0057] In the embodiments of this application, such as Figure 11 As shown, the inner circumferential surface of the through hole 70 of the second port 7 is provided with a second abutting part 701 that is interference-fitted with the positioning part 1011 in the second direction. Through the interference fit between the second abutting part 701 and the positioning part 1011, the misinsertion prevention device 1 is fixed in the second port 7.

[0058] In the embodiments of this application, such as Figure 11 As shown, the inner circumferential surface of the through hole 70 of the second port 7 may also be provided with a third limiting surface 702 that is clearance-fitted with the second limiting part 202 in the first direction. The third limiting surface 702 limits the mis-insertion prevention device 1 and the second port 7 in the first direction when they are inserted and installed.

[0059] In the embodiments of this application, such as Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the receiving groove 60 structure is adapted to the structure of the mis-insertion prevention device 1 during insertion and installation. For example, it may also include a groove structure that accommodates the protruding structure of the guide portion 30, and the through hole 70 penetrates and holds a part of the mis-insertion prevention device 1. However, this application is not limited to a structure in which the first port 6 includes a receiving groove and the second port 7 includes a through hole. For example, the second port 7 may also include a structure like the receiving groove 60 in the first port 6 to adapt to the structure of the mis-insertion prevention device 1, or it may be a structure in which the first port 6 includes a through hole 70 and the second port 7 includes a receiving groove 60.

[0060] In this embodiment of the application, the number of receiving slots 60 of the first port 6 can be multiple, wherein each receiving slot 60 can accommodate one misinsertion prevention device 1, and the number of through holes of the second port 7 is the same as the number of receiving slots 60, wherein each through hole 70 can hold one misinsertion prevention device 1 through.

[0061] The following specific embodiments illustrate the installation of the mis-insertion prevention device 1 with the first port 6 and the second port 7 to further demonstrate its ease of installation. In the following examples, the first port 6 is exemplified as a terminal block, and the second port 7 as an example of a housing unit. For instance, the first port 6 (terminal block) has five receiving slots 60, and the second port 7 (housing unit) has five through holes 70. The positions of the receiving slots 60 and the through holes 70 correspond one-to-one in the first direction. For example, the mis-insertion prevention device 1 needs to be inserted and installed in the first, third, and fifth receiving slots 60 of the terminal block, and the mis-insertion prevention device 1 needs to be inserted and installed in the second and fourth through holes 70 of the housing unit.

[0062] Installation Example 1

[0063] To facilitate manufacturing, when making the misinsertion prevention device 1, multiple misinsertion prevention devices 1 are machined on the same straight edge of a whole plate (for example, 5 misinsertion prevention devices 1 are machined on a straight edge). When it is necessary to insert the misinsertion prevention device 1 into the terminal block and the housing unit, all misinsertion prevention devices 1 are broken off and removed from the whole plate.

[0064] For the first, third, and fifth receiving grooves 60, the insertion end 101 of the mis-insertion prevention device 1 is inserted into the receiving groove 60 respectively (the mis-insertion prevention device 1 is installed in the forward direction). The mis-insertion prevention device 1 is inserted until the second limiting part 202 abuts against the first limiting surface 602 and the third limiting part 301 abuts against the second limiting surface 603. At this time, the mis-insertion prevention device 1 is completely accommodated in the receiving groove 60. The mis-insertion prevention device 1 is fixed in the receiving groove 60 by the interference fit between the positioning part 1011 and the first abutting part 601.

[0065] For the second and fourth receiving grooves 60, the pre-installed end 102 of the mis-insertion prevention device 1 is inserted into the receiving groove 60 respectively (reverse installation (pre-installation) of the mis-insertion prevention device 1). The mis-insertion prevention device 1 is inserted into the first limiting part 201 and abuts against the first limiting surface 602. At this time, the pre-installed end 102 of the mis-insertion prevention device 1 and a part of the wing 20 are inserted into the receiving groove 60, and the insertion end 101 is exposed outside the receiving groove 60. Through the frictional engagement between the receiving groove 60 and the wing 20 in the left-right and up-down directions, the mis-insertion prevention device 1 can be temporarily fixed on the terminal block.

[0066] The terminal block with five mis-insertion prevention devices 1 inserted is installed on the housing unit. Since the receiving groove 60 and the through hole 70 are aligned one-to-one in the first direction, the part of the mis-insertion prevention device 1 exposed outside the receiving groove 60 is inserted into the through hole 70 at the second and fourth positions. Through the cooperation and limitation of the third limiting surface 702 and the second limiting part 202 of the through hole 70 in the first direction, the mis-insertion prevention device 1 is inserted into the appropriate position of the through hole 70. At this time, the mis-insertion prevention device 1 is fixed in the through hole 70 by the interference fit between the positioning part 1011 and the second abutting part 701.

[0067] Thus, when the terminal block is removed from the housing unit again, the misinsertion prevention device 1 is fixed in the through holes 70 at positions 2 and 4 of the housing unit. Therefore, when the terminal block needs to be inserted into the housing unit again in the future, only the housing unit and the terminal block that are matched can be installed smoothly.

[0068] Therefore, the misinsertion prevention device 1 can be fastened to the terminal block by forward installation, and can also be fastened to the terminal block by reverse installation (pre-installation) and then the terminal block is installed into the housing unit and fastened to the housing unit, thereby realizing the misinsertion prevention function between each terminal block and the housing unit. The overall structure is convenient for customers to operate.

[0069] Installation Example 2

[0070] To facilitate processing, when manufacturing the misinsertion prevention device 1, multiple misinsertion prevention devices 1 are processed on the same straight edge of a whole plate (for example, 5 misinsertion prevention devices 1 are processed on a straight edge). When it is necessary to insert the misinsertion prevention device 1 into the terminal block, the 1st, 3rd and 5th misinsertion prevention devices 1 are first broken off and removed from the whole plate.

[0071] Insert the insertion end 101 of the misinsertion prevention device 1 into the receiving groove 60. Insert the misinsertion prevention device 1 until the second limiting part 202 abuts against the first limiting surface 602 and the third limiting part 301 abuts against the second limiting surface 603. At this time, the misinsertion prevention device 1 is completely received in the receiving groove 60. The misinsertion prevention device 1 is fixed in the receiving groove 60 by the interference fit between the positioning part 1011 and the first abutting part 601.

[0072] The remaining mis-insertion prevention devices 1 at positions 2 and 4 on the whole plate are directly inserted into the through hole 70 of the outer shell unit through the whole plate. The mis-insertion prevention device 1 is inserted into the appropriate position of the through hole 70 by the cooperation and limitation of the third limiting surface 702 and the second limiting part 202 in the first direction through the through hole 70. At this time, the mis-insertion prevention device 1 is fixed in the through hole 70 by the interference fit between the positioning part 1011 and the second abutting part 701.

[0073] After fixing the misinsertion prevention device 1 at positions 2 and 4 in the through hole 70, the plate is broken off and removed. In this way, the misinsertion prevention device 1 is fixed in the receiving groove 60 and the through hole 70 respectively.

[0074] In Example 2, in addition to ensuring that only mutually matched housing units and terminal blocks can be installed smoothly, the mis-insertion prevention device 1 can be installed in the through hole 70 without removing it from the entire board, thus improving the customer experience.

[0075] The above description only describes the configuration related to the connection port in the embodiments of this application. This application is not limited to this. The connection port may also include other conventional configurations. For details, please refer to the relevant technology. The description is omitted here.

[0076] In the embodiments of this application, the above description uses a connection port including a terminal block and a housing unit as an example. However, in this application, the misinsertion prevention device 1 is applicable not only to connection ports used for electrical connections, but also to connection ports that are only mechanically connected, for example.

[0077] According to the connection port of the present application embodiment, the mis-insertion prevention device 1, which is of the same structure and can be inserted and adapted to different other components, can prevent installation errors with different other components and optimize costs. By providing the positioning part 1011, the mis-insertion prevention device 1 can be positioned and engaged with different other components. By providing the first limiting part 201, the mis-insertion prevention device 1 can be limited when pre-installed with other components (e.g., terminal block), and it is also easy to insert it when installing with another other component (e.g., housing unit), thereby satisfying the customer's operational convenience and practicality in installation.

[0078] Third aspect of the embodiments

[0079] An embodiment of the third aspect of this application provides an electronic product.

[0080] The electronic product may include the connection port 5 described in the embodiments of the second aspect. Since the main structure of the connection port 5 has been described in detail in the embodiments of the second aspect, its contents are included herein and will not be repeated here.

[0081] In the embodiments of this application, the electronic product may be, for example, a PLC or similar product.

[0082] The above description only illustrates the composition of the electronic product related to the embodiments of this application. This application is not limited to this. The electronic product may also include other conventional compositions. For details, please refer to the relevant technology. The description is omitted here.

[0083] According to the embodiments of this application, the electronic product, by means of the mis-insertion prevention device 1 of the same structure that can be inserted and adapted to different other components, can prevent installation errors with different other components and optimize costs; by providing the positioning part 1011, the mis-insertion prevention device 1 can be positioned and engaged with different other components; by providing the first limiting part 201, the mis-insertion prevention device 1 can be limited when pre-installed with other components (e.g., terminal block), and it is also easy to insert it when installing with another other component (e.g., housing unit), thereby satisfying the customer's operational convenience and practicality in installation.

[0084] The present application has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on its spirit and principles, and these modifications and variations are also within the scope of the present application.

[0085] Preferred embodiments of this application have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of this application are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

Claims

1. A device for preventing accidental insertion, characterized in that, The misinsertion prevention device includes: The main body, which is plate-shaped, includes an insertion end and a pre-installed end located on the opposite side of the insertion end in a first direction; and The wings are located on both sides of the main body near the pre-assembled end, and extend outward from the edge of the main body in a second direction. The insertion end is provided with positioning portions located on both sides of the insertion end in the second direction. The edge of the pre-installed end and the edge of the wing near the pre-installed end are formed with a first limiting portion.

2. The misinsertion prevention device according to claim 1, characterized in that, The positioning part is a protruding structure that extends outward from at least a portion of the edges on both sides of the insertion end.

3. The misinsertion prevention device according to claim 1, characterized in that, The first limiting portion is formed as a stop surface that gradually slopes from the pre-installed end to the insertion end.

4. The misinsertion prevention device according to claim 1, characterized in that, A second limiting portion is formed at the edge of the wing that is away from the pre-installed end.

5. The misinsertion prevention device according to claim 4, characterized in that, The second limiting portion is formed as a stop surface that gradually slopes from the insertion end to the pre-installed end.

6. The misinsertion prevention device according to claim 1, characterized in that, The misinsertion prevention device further includes: A guide portion, which is stacked on the upper side of the main body portion and extends in a plate shape from the pre-installed end of the main body portion to the insertion end of the main body portion. Viewed from a third-party perspective, the guide portion is formed in a convex shape, and the width of the edge of the guide portion near the insertion end in the second direction is smaller than the width of the edge of the guide portion near the pre-installed end in the second direction.

7. The misinsertion prevention device according to claim 6, characterized in that, The edge of the guide portion near the pre-installed end, the edge of the pre-installed end, and the edge of the wing portion near the pre-installed end together form the first limiting portion. A third limiting portion is formed on the front end side of the convex shape of the guide portion at its maximum width. The third limiting part is formed as a stop surface that gradually slopes from the insertion end to the pre-installation end.

8. A connection port, characterized in that, The connection port includes: The device for preventing accidental insertion as described in any one of claims 1 to 7; A first port, the first port having a receiving groove for accommodating the misinsertion prevention device; The second port engages with the first port and has a through hole that holds the misinsertion prevention device in place.

9. The connection port according to claim 8, characterized in that, The inner circumferential surface of the receiving groove is provided with a first abutting part that is interference-fitted with the positioning part in the second direction and a first limiting surface that is clearance-fitted with the first limiting part in the first direction. The maximum distance between the inner peripheral surfaces of the receiving groove in the second direction is equal to the width of the edge end of the wing in the second direction, and the distance between the inner peripheral surfaces of the receiving groove in the third direction is equal to the maximum thickness of the wing in the third direction. The inner circumferential surface of the through hole at the second port is provided with a second abutting part that is interference-fitted with the positioning part in the second direction.

10. An electronic product, characterized in that, The electronic product includes the connection port as described in claim 8 or 9.

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