Voltage input connection structure of relay and relay

Abstract

The present invention provides a voltage input connection structure for a relay and a relay, which relate to the technical field of electrical elements. The voltage input connection structure for a relay includes a connector assembly (2), a plurality of relay coil pins (1), and an incorrect insertion prevention member (3). The connector assembly (2) includes a connection member (21) having a plurality of signal insertion holes (2122), and the plurality of relay coil pins (1) are inserted into the plurality of signal insertion holes (2122). The incorrect insertion prevention member (3) is provided on the relay shell (100) and connected to the connection member (21). The incorrect insertion prevention member (3) is arranged to limit the position of the connection member (21) relative to the incorrect insertion prevention member (3) and is used to position the connection member (21). The incorrect insertion prevention member has a foolproof function, ensuring the correct arrangement order of the multiple relay coil pins and preventing reverse connection due to confusion, thereby improving the pass rate of finished relays.

Description

[Technical Field]

[0001] (Reference to Related Application) This disclosure claims priority to Chinese patent application Ser. No. 202211249678.4, filed on October 12, 2022, the entire contents of which are incorporated herein by reference.

[0002] (Technical field) The present invention relates generally to the technical field of electrical elements, and more particularly to a voltage input connection structure for a relay and a relay. [Background technology]

[0003] In most conventional magnetic holding relays, the coil lead-out ends are soldered pins, and the soldered pins of the magnetic holding relay and the signal wires are fixed by welding.

[0004] The voltage input connection structure of the coil of a conventional magnetic holding relay has the following drawbacks.

[0005] First, because the gap between two adjacent signal lines is relatively small, heat shrink tubing must be placed around the signal lines to prevent damage to the lines during soldering. This complicates the production process, increases labor costs, and limits automation, affecting welding efficiency.

[0006] Second, multiple signal lines have color line sequential requirements, which makes it easy for the signal lines to be misaligned during welding, and the signal lines may be connected in reverse, preventing the magnetic retention relay from operating normally and affecting the pass rate of the finished product. Summary of the Invention

[0007] The present invention provides a voltage input connection structure for a relay and a relay that reduces the risk of incorrect connection of signal lines and improves the pass rate of finished products.

[0008] According to a first aspect of the present invention, there is provided a voltage input connection structure for a relay, comprising: a connector assembly including a connection member provided with a plurality of signal insertion holes; a plurality of relay coil pins inserted into the plurality of signal insertion holes; an incorrect insertion prevention member provided on the shell of the relay and connected to the connection member, The mis-insertion prevention member is arranged to limit the position of the connection member relative to the mis-insertion prevention member, and provides a voltage input connection structure for the relay used to position the connection member.

[0009] In some embodiments, the mis-insertion prevention member comprises: an attachment portion provided on a shell of the relay and detachably connected to the connection member; and an error prevention portion provided on the mounting portion for limiting the position of the connecting member relative to the mounting portion.

[0010] In some embodiments, the connecting member is provided with an insertion hole corresponding to the error prevention part, and the error prevention part is drilled into the insertion hole and contacts and matches with it.

[0011] In some embodiments, the relay coil pins are arranged along a first direction, and the distances between both ends of the mounting portion along the first direction and the error prevention portion are not equal.

[0012] In some embodiments, the connecting member comprises: a positioning portion detachably connected to the mounting portion and having the insertion hole; a connection portion connected to the positioning portion and having the signal insertion hole provided therein.

[0013] In some embodiments, one of the positioning portion and the mounting portion is provided with a locking hook, and the other is provided with an engaging clip, and the locking hook is connected to the engaging clip.

[0014] In some embodiments, the positioning portion has an accommodating cavity for accommodating the mounting portion on the side facing the mis-insertion prevention member, and the connection position between the locking hook and the engagement clip is provided inside the positioning portion.

[0015] In some embodiments, the locking hook is provided on the mounting portion along a height direction of the shell of the relay, or the engagement clip is provided on the mounting portion along a height direction of the shell of the relay.

[0016] In some embodiments, the number of the locking hooks and the engaging clips is plural, the plural locking hooks are connected to corresponding plural engaging clips, and the plural locking hooks are respectively provided on both sides of the mounting portion along the height direction of the shell of the relay.

[0017] In some embodiments, the connector assembly further includes a plurality of signal lines arranged along a first direction, the plurality of signal lines being inserted into the signal insertion holes along a second direction and electrically connected to a plurality of relay coil pins, the first direction and the second direction being perpendicular to each other.

[0018] In some embodiments, the mis-insertion prevention member is arranged to extend along the first direction and is arranged alongside the relay coil pin along a third direction, and the third direction is perpendicular to both the first direction and the second direction.

[0019] In some embodiments, the signal line is detachably connected to the connection member.

[0020] According to a second aspect of the present invention, an embodiment of the present invention further provides a relay including a shell, a coil, and the above-mentioned voltage input connection structure of the relay, wherein the coil is disposed within the shell, and a relay coil pin of the voltage input connection structure of the relay is disposed at a lead-out end of the coil.

[0021] In some embodiments, the mis-insertion prevention member of the voltage input connection structure of the relay and the shell of the relay are integrally formed.

[0022] In some embodiments, the device further comprises a load terminal disposed at least partially within the shell.

[0023] In some embodiments, a first side plate is disposed perpendicular to the bottom plate, at least a portion of the load terminal is extended from the first side plate, a second side plate is disposed perpendicular to the bottom plate and adjacent to the first side plate so as to be perpendicular to each other, and the mis-insertion prevention member of the voltage input connection structure of the relay is disposed on the second side plate.

[0024] In some embodiments, the second side plate is provided with a recess, and the mis-insertion prevention member is provided within the recess.

[0025] An embodiment of the present invention has the following advantages or beneficial effects.

[0026] In a voltage input connection structure for a relay according to an embodiment of the present invention, a signal insertion hole provides an attachment position for a relay coil pin, the relay coil pin serves to transmit voltage, and after the relay coil pin is inserted into the signal insertion hole, a voltage signal can be transmitted to the relay coil through the relay coil pin, and a magnetic field change can be generated when the coil is charged. The mis-insertion prevention member is provided on a relay shell and connected to a connecting member, and the mis-insertion prevention member serves to attach the connecting member and fix the connector assembly to the relay shell. The mis-insertion prevention member limits the position of the connecting member relative to the mis-insertion prevention member, and serves to limit and position the connecting member. The mis-insertion prevention member interferes with the connecting member to achieve a foolproof function, i.e., the connecting member can only be connected to the mis-insertion prevention member at a specific position, which is equivalent to restricting the position of the multiple signal insertion holes provided on the connecting member. This ensures a uniform arrangement of the multiple relay coil pins, prevents reverse connection due to confusion, and improves the pass rate of finished relays.

[0027] In a relay according to an embodiment of the present invention, a coil is disposed within a shell, and the shell serves to accommodate and protect the coil. A signal insertion hole provides an attachment position for a relay coil pin, the relay coil pin serves to transmit voltage, and after the relay coil pin is inserted into the signal insertion hole, a voltage signal can be transmitted to the coil via the relay coil pin, and a magnetic field change can be generated when the coil is charged. A mis-insertion prevention member is disposed on the relay shell and connected to a connecting member, and the mis-insertion prevention member attaches the connecting member and secures the connector assembly to the relay shell. The mis-insertion prevention member limits the position of the connecting member relative to the mis-insertion prevention member, and serves to limit and position the connecting member. The mis-insertion prevention member provides positional interference with the connecting member, thereby achieving a foolproof function, i.e., the connecting member can only be connected to the mis-insertion prevention member at a specific position, which is equivalent to restricting the position of the multiple signal insertion holes provided on the connecting member. This ensures a uniform arrangement order of the multiple relay coil pins, prevents reverse connection due to confusion, and improves the pass rate of finished relays. [Brief explanation of the drawings]

[0028] These and other features and advantages of the present invention will become more apparent from the detailed description of illustrative embodiments thereof, taken in conjunction with the drawings.

[0029] [Figure 1] 1 is a structural schematic diagram showing one view angle of a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 2] 1 is a structural schematic diagram showing another view of the voltage input connection structure of a relay according to an embodiment of the present invention; FIG. [Figure 3] FIG. 2 is a structural schematic diagram showing another view of the voltage input connection structure of a relay according to an embodiment of the present invention. [Figure 4] FIG. 4 is a partial enlarged view of part A in FIG. 3. [Figure 5] 1 is a structural schematic diagram showing an erroneous insertion prevention member in a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 6] 1 is a structural schematic diagram showing a connector assembly of a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 7] 1 is a structural schematic diagram showing a connector assembly of a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 8] 1 is a structural schematic diagram showing a connector assembly of a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 9] 1 is a structural schematic diagram showing a connector assembly of a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 10] 5 is a structural schematic diagram showing a connector assembly of a voltage input connection structure of a relay according to an embodiment of the present invention; [Figure 11] 1 is a schematic diagram showing a matching of a connector assembly and a relay coil pin in a voltage input connection structure of a relay according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0030] The invention in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure.The exemplary embodiments described herein are only for the purpose of illustration and are not intended to limit the scope of protection of the present disclosure, so it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0031] In describing this disclosure, unless expressly specified and limited otherwise, the terms "first," "second," "second" are for descriptive purposes only and do not denote or imply relative importance, the term "plurality" refers to two or more than two, and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" or "an" object is similarly intended to indicate one of a possible plurality of objects.

[0032] Unless otherwise specified or limited, the terms "connected," "fixed," etc. should be understood in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection, and "connected" may be a direct connection or an indirect connection via an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms in the present disclosure based on specific circumstances.

[0033] Furthermore, in describing the present disclosure, orientation terms such as "above," "below," "inside," and "outside" described in the exemplary embodiments of the present disclosure should be understood to be described in terms of angles shown in the drawings and should not be understood to limit the exemplary embodiments of the present disclosure. In the context, when an element or feature is referred to as being connected "above," "below," or "inside," "outside" of another element(s), it should be understood that it may not only be directly connected "above," "below," or "inside," "outside" of another element(s), but also be indirectly connected "above," "below," or "inside," "outside" of another element(s) via an intermediate element.

[0034] Hereinafter, exemplary embodiments will be described more fully with reference to the drawings. However, the exemplary embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein. On the contrary, these embodiments are provided to fully and completely convey the concept of the exemplary embodiments to those skilled in the art. In the drawings, the same reference numerals indicate the same or similar structures, and therefore detailed descriptions thereof will be omitted.

[0035] 1 to 3, the voltage input connection structure of a relay is applied to the technical field of relays. The voltage input connection structure of the relay includes a connector assembly 2 and a plurality of relay coil pins 1, the plurality of relay coil pins 1 are essentially lead-out ends of a relay coil, the connector assembly 2 includes a connection member 21, the connection member 21 is provided with a plurality of signal insertion holes 2122, and the plurality of relay coil pins 1 are inserted into the plurality of signal insertion holes 2122 correspondingly.

[0036] This embodiment provides a voltage input connection structure for a relay, in which the signal insertion hole 2122 provides an attachment position for the relay coil pin 1, and the relay coil pin 1 plays the role of voltage transmission. After the relay coil pin 1 is inserted into the signal insertion hole 2122, a voltage signal can be transmitted to the coil through the relay coil pin 1, and a magnetic field change will occur when the coil is charged.

[0037] The external shape of the connecting member 21 resembles a rectangular parallelepiped structure, and the height direction of the connecting member 21 is defined as a first direction Z, the length direction of the connecting member 21 is defined as a second direction Y, and the width direction of the connecting member 21 is defined as a third direction X, where the first direction Z, the second direction Y, and the third direction X are perpendicular to each other. The multiple relay coil pins 1 are arranged along the first direction Z, in other words, the arrangement direction of the multiple relay coil pins 1 is the first direction Z.

[0038] In one embodiment, the connector assembly 2 further includes a plurality of signal lines 22 arranged along the first direction Z. The signal lines 22 are inserted into the corresponding signal insertion holes 2122 along the second direction Y and electrically connected to the plurality of relay coil pins 1. The signal insertion holes 2122 provide mounting positions for the signal lines 22, and the signal lines 22 serve to transmit voltage. The signal lines 22 and the relay coil pins 1 are respectively disposed on both sides of the connecting member 21 along the second direction Y. After the signal lines 22 and the relay coil pins 1 are inserted into the signal insertion holes 2122, an electrical connection can be achieved between the signal lines 22 and the relay coil pins 1, and a voltage signal can be transmitted to the coil via the signal lines 22 and the relay coil pins 1, generating a magnetic field change when the coil is charged.

[0039] Since the multiple signal lines 22 are arranged along the first direction Z, i.e., the multiple signal lines 22 are arranged in a certain order on the connecting member 21, it can be understood that the multiple signal lines 22 and the corresponding multiple relay coil pins 1 are arranged correspondingly and electrically connected to each other so as to realize the voltage transmission process.

[0040] In the prior art, a heat shrink tube is provided around the signal wire, and the signal wire is connected to the relay coil pin by welding. This makes the production process complicated, reduces production efficiency, and can easily lead to multiple signal wires being mixed up and reversely connected, which affects the effectiveness of the relay.

[0041] 1 to 3, the voltage input connection structure for a relay according to this embodiment further includes an erroneous insertion prevention member 3 that is provided on a shell 100 of the relay and connected to a connecting member 21. The erroneous insertion prevention member 3 is disposed so as to restrict the position of the connecting member 21 relative to the erroneous insertion prevention member 3, and is used to position the connecting member 21, and electrically connects a plurality of signal lines 22 to a plurality of relay coil pins 1 corresponding to each other.

[0042] According to the voltage input connection structure of the relay of this embodiment, the mis-insertion prevention member 3 is provided on the relay shell 100 and connected to the connecting member 21. The mis-insertion prevention member 3 serves to attach the connecting member 21 and secure the connector assembly 2 to the relay shell 100. The mis-insertion prevention member 3 limits the position of the connecting member 21 relative to the mis-insertion prevention member 3, and serves to limit and position the connecting member 21. The mis-insertion prevention member 3 provides positional interference with the connecting member 21, thereby achieving a fool-proof function. In other words, the connecting member 21 can only be connected to the mis-insertion prevention member 3 at specific positions, which is equivalent to restricting the position of the multiple signal insertion holes 2122 provided on the connecting member 21. This ensures the uniformity of the arrangement order of the multiple relay coil pins 1 and prevents reverse connection due to confusion, thereby improving the pass rate of finished relay products.

[0043] After the mis-insertion prevention member 3 has restrained the position of the plurality of signal insertion holes 2122, the plurality of signal wires 22 are inserted into the corresponding signal insertion holes 2122, which is equivalent to restraining the position of the plurality of signal wires 22, ensuring uniformity in the arrangement order of the plurality of signal wires 22 and enabling the plurality of signal wires 22 to be electrically connected to the plurality of relay coil pins 1, thereby reducing reverse connection due to confusion in the line sequence of the signal wires 22 and resulting in a high success rate of the finished relay products.

[0044] In one embodiment, the erroneous insertion prevention member 3 is provided to extend along the first direction Z and is provided alongside the relay coil pin 1 along the third direction X.

[0045] The mis-insertion prevention member 3 is provided extending along the first direction Z, and the mis-insertion prevention direction of the mis-insertion prevention member 3 is aligned with the arrangement direction of the multiple relay coil pins 1 to prevent mis-insertion of the multiple signal wires 22. At the same time, arranging the mis-insertion prevention member 3 and the relay coil pins 1 side by side along the third direction X is equivalent to the mis-insertion prevention member 3 being positioned next to the relay coil pins 1, which prevents positional interference with the relay coil pins 1 and also serves to prevent mis-insertion.

[0046] In one embodiment, as shown in Figures 4 and 5, the mis-insertion prevention member 3 is provided on the shell 100 of the relay and includes an attachment portion 31 that is detachably connected to the connecting member 21, and an mis-insertion prevention portion 32 that is provided on the attachment portion 31 and that limits the position of the connecting member 21 relative to the attachment portion 31.

[0047] Here, the mounting portion 31 has a striped outer shape, is fixed to the relay shell 100, and is detachably connected to the connecting member 21. The mounting portion 31 serves to prevent detachment and secure the connecting member 21, thereby ensuring the positional stability of the connector assembly 2. The error prevention portion 32 serves to limit and position the connecting member 21, restricting the connecting member 21 to a specific position so that it can be connected to the mounting portion 31, thereby fulfilling positioning and foolproofing roles and reducing confusion and reverse connection of the signal lines 22.

[0048] In one embodiment, the connecting member 21 is provided with an insertion hole 2111 corresponding to the error prevention part 32, and the error prevention part 32 is drilled into the insertion hole 2111 and is in contact with and matches with it.

[0049] Here, the mis-insertion prevention part 32 is specifically a columnar structure, and is also called a positioning column. The connecting member 21 is provided with an insertion hole 2111 corresponding to the mis-insertion prevention part 32, so that the mis-insertion prevention part 32 is drilled into the insertion hole 2111 and can come into contact with and match with it, thereby performing a guiding function and also playing the role of initial pre-positioning between the connector assembly 2 and the mis-insertion prevention member 3 when attached to the connector assembly 2, ensuring the accuracy of the attachment position of the connector assembly 2.

[0050] In addition, the error prevention part 32 may be a rectangular pillar or a cylindrical pillar, and the insertion hole 2111 may be a rectangular hole or a circular hole. The structure and shape of the error prevention part 32 and the insertion hole 2111 in this embodiment are not limited, and may be adjusted according to the actual production situation as long as the error prevention part 32 and the insertion hole 2111 match each other and are both within the protection scope of this embodiment.

[0051] In addition, the end of the error prevention portion 32 closer to the connector assembly 2 may have a tapered structure, i.e., the end of the error prevention portion 32 may be called a pointed end, and the error prevention portion 32 is easy to insert into the insertion hole 2111.

[0052] Since the arrangement direction of the multiple signal lines 22 is the first direction Z, the first direction Z may be the height direction, length direction, or width direction along the shell 100 of the relay. In this embodiment, the first direction Z is taken as the height direction of the shell 100 as an example, and in this case, the connector assembly 2 is connected to the lead-out end of the coil using a horizontal insertion method.

[0053] In one embodiment, the relay coil pins 1 are arranged along the first direction Z, and the distances between both ends of the mounting portion 31 along the first direction Z and the error prevention portion 32 are not equal.

[0054] If the error prevention part 32 were located at the center of the mounting part 31, the error prevention part 32 would be inserted into the insertion hole 2111 of the connecting member 21 regardless of whether the connecting member 21 is upright or inverted, and the position of the connecting member 21 relative to the error prevention part 32 would not be clearly different, making it difficult to achieve the error prevention function. Because the distances between the error prevention part 32 and both ends of the mounting part 31 in the first direction Z are designed to be unequal, i.e., because the error prevention part 32 is not located at the center of the mounting part 31 in the first direction Z, the error insertion prevention part 32 and the connecting member 21 can be smoothly connected only when the connecting member 21 is in either the upright or inverted position, which means that the connecting member 21 is in the correct mounting position. Otherwise, even if at least a part of the error prevention part 32 is inserted into the insertion hole 2111, a part of the connecting member 21 may be located outside the mounting part 31, or another part of the connecting member 21 may be located inside the mounting part 31, that is, the structure of at least a part of the connecting member 21 may not completely match the mounting part 31. In this case, it means that the connecting member 21 is in an incorrect mounting position, and the connecting member 21 needs to be rotated 180° to change its direction.

[0055] In addition, in some other embodiments, when multiple signal lines 22 are arranged along a second direction Y, for example, the second direction Y which is the longitudinal direction of the relay shell 100, the first direction Z and the second direction Y are perpendicular to each other, and the distances between both ends of the mounting portion 31 along the second direction Y and the error prevention portion 32 are not equal, and the principles and structures thereof are similar, so detailed descriptions will be omitted.

[0056] 4-5 , the connecting member 21 includes a positioning portion 211 and a connecting portion 212, the positioning portion 211 is detachably connected to the mounting portion 31, and the connecting portion 212 is connected to the positioning portion 211. The insertion hole 2111 is provided in the positioning portion 211, and the signal insertion hole 2122 is provided in the connecting portion 212; that is, the connection position between the signal line 22 and the relay coil pin 1 is provided inside the connecting portion 212.

[0057] The positioning portion 211 is provided with an insertion hole 2111, which provides an installation position for the insertion hole 2111 and is detachably connected to the mounting portion 31. The positioning portion 211 essentially serves to mount the mis-insertion prevention member 3. The connecting portion 212 is connected to the positioning portion 211, and the connecting portion 212 and the positioning portion 211 form an integral structure. The signal line 22 and the relay coil pin 1 are respectively provided on both sides of the connecting portion 212 in the second direction Y. After the mis-insertion prevention member 32 is inserted into the insertion hole 2111, the signal line 22 and the relay coil pin 1 can directly abut against each other, and the connecting portion 212 serves as an intermediate connection between the signal line 22 and the relay coil pin 1. At the same time, the signal line 22 and the relay coil pin 1 are located on different sides of the connecting portion 212 in the second direction Y, thereby reducing interference between the signal line 22 and the relay coil pin 1. The connection position between the signal line 22 and the relay coil pin 1 is hidden inside the connection part 212, preventing the connection position between the signal line 22 and the relay coil pin 1 from being exposed. The connection part 212 not only plays a dustproof and protective role, but also serves as a connection base.

[0058] In one embodiment, as shown in FIGS. 5 and 6, a locking hook 2112 is provided on one of the positioning portion 211 and the attachment portion 31, and an engaging clip 311 is provided on the other, and the locking hook 2112 is connected to the engaging clip 311.

[0059] Compared with the welding connection and fixing method in the prior art, the present disclosure realizes a detachable connection between the positioning part 211 and the mounting part 31 by connecting the locking hook 2112 to the engaging clip 311, which has good connection stability, is convenient for installation and removal, and subsequent maintenance. The structure is simple and the operation is convenient, and there is no need to perform additional operations such as installing a heat shrink tube, which saves labor costs and time costs and improves installation production efficiency.

[0060] In addition, the locking hook 2112 or the engaging clip 311, the mounting portion 31, and the mistake prevention portion 32 may be an integrally molded structure, that is, the entire structure of the mistaken insertion prevention member 3 may be molded in one piece, which reduces the part assembly steps and lowers production costs.

[0061] In one embodiment, as shown in FIG. 6, the positioning portion 211 has an accommodating cavity 2113 for accommodating the mounting portion 31 on the side facing the mis-insertion prevention member 3, and the connection position between the locking hook 2112 and the engaging clip 311 is provided inside the positioning portion 211.

[0062] An accommodating cavity 2113 is provided on the side of the positioning portion 211 facing the mis-insertion prevention member 3, providing an accommodating space for the mounting portion 31. When the mounting portion 31 is accommodated in the accommodating cavity 2113, it is equivalent to the mounting portion 31 being fitted into the positioning portion 211, and is a more compact structure that occupies less space than a structure in which the mounting portion 31 is exposed to the positioning portion 211. The connection position between the locking hook 2112 and the engaging clip 311 is provided inside the positioning portion 211, preventing the connection position between the locking hook 2112 and the engaging clip 311 from being exposed or protruding and occupying a large space, thereby contributing to space saving.

[0063] In this embodiment, an engaging clip 311 is provided on the mounting portion 31 and a locking hook 2112 is provided on the positioning portion 211 as an example to specifically explain how to fully utilize the internal space of the mounting portion 31 to improve space utilization rate.

[0064] In one embodiment, the mis-insertion prevention member 3 of the relay voltage input connection structure and the relay shell 100 are formed as a single unit. The mis-insertion prevention member 3 and the relay shell 100 are formed as a single unit, which reduces the assembly steps and time between the components and saves production costs.

[0065] It can be understood that the attachment portion 31 and the error prevention portion 32 of the incorrect insertion prevention member 3 are both integrally molded.

[0066] If the relay shell 100 is made of an insulating material such as plastic, the shell 100 and the mis-insertion prevention member 3 can be integrally formed by injection molding, which reduces the number of component assembly steps, allows for a high degree of automated production, and saves production costs.

[0067] In the actual production process, if a plastic part has a side hole, a side recess, or a protrusion that is not in the direction of mold opening, the protruding molded part will prevent the plastic material from being released from the mold after molding.

[0068] Therefore, the locking hook 2112 in this embodiment is provided on the mounting portion 31 along the height direction of the relay shell 100, or the engagement clip 311 is provided on the mounting portion 31 along the height direction of the relay shell 100.

[0069] Here, the height direction of the shell 100 is the first direction Z, i.e., the opening and closing direction of the upper and lower mold dies. When the attachment portion 31 is provided with the locking hooks 2112, the locking hooks 2112 are provided along the height direction of the shell 100, but not along the length or width direction of the shell 100. When the attachment portion 31 is provided with the engaging clips 311, the engaging clips 311 are provided along the height direction of the shell 100, but not along the length or width direction of the shell 100. The installation direction of the locking hooks 2112 or the engaging clips 311 is aligned with the mold opening direction of the upper and lower mold dies, thereby realizing the integral molding of the misinsertion prevention member 3 and the shell 100, while eliminating the need for a side suction or slide structure in the mold. This simplifies the structure of the upper and lower molds and reduces production costs.

[0070] In one embodiment, the number of the locking hooks 2112 and the locking hooks 311 is plural, and the plural locking hooks 2112 are connected to the plural locking hooks 311. Here, the plural locking hooks 2112 are provided on both sides of the mounting portion 31 along the height direction of the relay shell 100.

[0071] The multiple locking hooks 2112 are connected to corresponding engagement clips 311, which corresponds to forming multiple connection points between the mis-insertion prevention member 3 and the connector assembly 2 and improves the connection stability between the mis-insertion prevention member 3 and the connector assembly 2. By providing the multiple locking hooks 2112 on both sides of the mounting portion 31 in the first direction Z, the arrangement direction of the locking hooks 2112 and the locking hooks 311 coincides with the opening and closing directions of the upper and lower molds, which simplifies the molds and production process and saves production costs.

[0072] In one embodiment, as shown in FIGS. 7 to 11, the signal lines 22 are detachably connected to the connection portions 212, which makes it easy to attach and detach the signal lines 22, and the connections of each signal line 22 are relatively independent, which makes it easy to perform maintenance if the signal lines 22 are damaged during use.

[0073] Specifically, a connection terminal is provided at the end of the signal wire 22, and a signal insertion hole 2122 is provided in the connection terminal. When the relay coil pin 1 is inserted into the signal insertion hole 2122, the relay coil pin 1 and the flexible lead wire of the signal wire 22 come into contact with each other, thereby establishing electrical conductivity between the relay coil pin 1 and the signal wire 22. A tongue 2123 is provided inside the connection terminal, and the outer shape of the tongue 2123 resembles a V-shape, with two side arms of the V-shape abutting against the relay coil pin 1 and the connecting portion 212, respectively. One side arm of the V-shape abuts against the relay coil pin 1, thereby fixing the position of the relay coil pin 1 and ensuring the reliability of the connection between the relay coil pin 1 and the flexible lead wire of the signal wire 22. A latch hole 2121 is provided in the connecting portion 212 corresponding to the tongue 2123, and the other side arm of the V-shape is connected to the latch hole 2121 to secure the tongue 2123 to the connecting portion 212. Since the V-shaped tongue 2123 has a certain degree of elasticity, it can be understood that the elastic action of the tongue 2123 itself can simultaneously ensure the fixing effect between the tongue 2123 and the relay coil pin 1 and the connecting portion 212.

[0074] The process of attaching and fixing the signal line 22 does not require the use of a heat shrink tube or a bonding wire, which reduces the number of production personnel and increases the production pass rate.

[0075] This embodiment further provides a relay that includes a shell 100, a coil, and the above-mentioned voltage input connection structure of the relay, where the coil is disposed within the shell 100, and the relay coil pin 1 of the voltage input connection structure of the relay is essentially the lead-out end of the coil.

[0076] In the relay according to this embodiment, the coil is provided inside the shell 100, and the shell 100 serves to house and protect the coil.

[0077] The relay is specifically an electromagnetic relay, which further includes a contact assembly, an electromagnetic assembly, an armature assembly, and a push card, and the permanent magnet steel in the armature assembly has a magnetic attraction effect to maintain the contact assembly in a normally open or normally closed state. The signal line 22 is electrically connected to the relay coil pin 1 and transmits a voltage signal to the coil, which is triggered by a pulse electrical signal, and the electromagnetic assembly drives the armature assembly to displace the push card, and the displacement of the push card converts the contact assembly between a normally open state and a normally closed state.

[0078] In one embodiment, the relay further includes a load terminal disposed at least partially within the shell 100 .

[0079] The contact assembly includes a movable contact and a fixed contact lead, one end of which contacts or separates from the other to switch between a normally open state and a normally closed state, and a load terminal is connected to the other end of the movable contact and the other end of the fixed contact lead, respectively, so that when the one end of the movable contact and the one end of the fixed contact lead come into contact with each other, the movable contact, the fixed contact lead, and the load terminal form a closed circuit.

[0080] 1 and 2, the shell 100 includes a bottom plate 101, a first side plate 102, and a second side plate 103. The first side plate 102 is disposed perpendicular to the bottom plate 101, and at least a portion of the load terminal extends from the first side plate 102. The second side plate 103 is disposed perpendicular to the bottom plate 101, and the first side plate 102 and the second side plate 103 are disposed adjacent to each other and perpendicular to each other. Here, an erroneous insertion prevention member 3 of the voltage input connection structure of the relay is disposed on the second side plate 103.

[0081] The first side plate 102 and the second side plate 103 are disposed perpendicular to the bottom plate 101 and surround the periphery of the bottom plate 101, and the shell 100 provides the necessary storage space for components such as coils and protects these components. The mis-insertion prevention member 3 is disposed on the second side plate 103, so that at least a portion of the load terminal is drawn out from the first side plate 102, corresponding to the load terminal and the mis-insertion prevention member 3 corresponding to the two adjacent side plates. Since the load terminal and the mis-insertion prevention member 3 both protrude from the shell 100, the load terminal and the mis-insertion prevention member 3 are disposed corresponding to the adjacent side plates, thereby reducing the space occupied by the load terminal and the mis-insertion prevention member 3 in the third direction X and achieving the purpose of reducing the height of the relay.

[0082] At the same time, the second side plate 103 is provided with a through-groove 1031 (shown in FIG. 5), and the relay coil pin 1 is drilled into the through-groove 1031 to allow the relay coil pin 1 to be pulled out from the second side plate 103. The mis-insertion prevention member 3 corresponds to the second side plate 103 adjacent to the coil pull-out end, and according to the proximity principle, it is convenient to pull out the relay coil pin 1 provided at the coil pull-out end from inside the shell 100. In addition, the through-groove 1031 and the mis-insertion prevention member 3 are arranged side by side along the third direction X, which simplifies the mold structure and eliminates the need for core drawing.

[0083] The load terminals and relay coil pins 1 are drawn out from two adjacent side plates, the first side plate 102 and the second side plate 103, respectively, and it can be seen that the structure is compact and occupies a small space.

[0084] In one embodiment, a recess is provided in the second side plate 103, and the mis-insertion prevention member 3 is provided in the recess. The recess provides at least a portion of the accommodation space for the mis-insertion prevention member 3, and the internal space of the recess is used to reduce the protruding distance of the mis-insertion prevention member 3 in the second direction Y relative to the second side plate 103, thereby further reducing the size of the entire relay in the second direction Y.

[0085] The mis-insertion prevention member 3 of the voltage input connection structure of the relay is arranged to extend along the first direction Z, and the arrangement direction of the multiple signal lines 22 is the first direction Z, which is arranged perpendicular to the bottom plate 101. In this case, the installation direction of the mis-insertion prevention member 3 is the same as the opening and closing direction of the mold, which simplifies the demolding process and simplifies the mold.

[0086] It should be noted that the voltage input connection structure of the relay shown in the drawings and described herein is merely one example of the application of the principles of the present invention, and those skilled in the art should clearly understand that the principles of the present invention are not limited to any of the details or any of the components of the device shown in the drawings or described herein.

[0087] It is to be understood that the invention is not limited to the detailed construction and arrangement of parts suggested herein. The invention is capable of other embodiments and of being realized and carried out in various forms. Such variations and modifications are within the scope of the invention. The invention as disclosed and defined herein is to be understood to extend to all alternative combinations of two or more individual features mentioned or apparent in the specification and / or drawings. All these different combinations constitute multiple alternative forms of the invention. The embodiments described herein illustrate the best modes for implementing the invention and will enable those skilled in the art to utilize the invention.

[0088] Other embodiments of the present disclosure will be readily apparent to those skilled in the art after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any modifications, uses, or adaptations of the present invention, which modifications, uses, or adaptations comply with the general principles of the present disclosure and include common general knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and example embodiments are to be considered as exemplary only, with the true scope and spirit of the present disclosure being determined by the appended claims.

[0089] It should be understood that the present disclosure is not limited to the exact construction described above and illustrated in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of protection of the present disclosure is limited only by the appended claims. [Explanation of symbols]

[0090] Here, the symbols are explained as follows: 100: Shell 101: Bottom plate 102: 1st side plate 103:Second side plate 1031: Through groove 1: Relay coil pin 2: Connector assembly 3: Misinsertion prevention component 21: Connection member 211: Positioning unit 2111: Insertion hole 2112: Locking hook 2113: Containment cavity 212: Connection 2121: Latch hole 2122: Signal insertion hole 2123:Tang 22: Signal line 31: Mounting part 311: Engagement clip 32: Error prevention unit

Claims

1. A voltage input connection structure for a relay, comprising: a connector assembly including a connection member provided with a plurality of signal insertion holes; a plurality of relay coil pins inserted into the plurality of signal insertion holes; an incorrect insertion prevention member provided on the shell of the relay and connected to the connection member, The mis-insertion prevention member is arranged to limit the position of the connecting member relative to the mis-insertion prevention member, and is used to position the connecting member. Relay voltage input connection structure.

2. The mis-insertion prevention member is an attachment portion provided on a shell of the relay and detachably connected to the connection member; and an error prevention portion provided on the mounting portion for limiting the position of the connecting member relative to the mounting portion.

2. The voltage input connection structure of a relay according to claim 1.

3. 3. The voltage input connection structure of a relay according to claim 2, wherein the connection member is provided with an insertion hole corresponding to the fault prevention part, and the fault prevention part is drilled into the insertion hole and comes into contact with and matches the insertion hole.

4. 4. The voltage input connection structure of a relay according to claim 3, wherein the plurality of relay coil pins are arranged along a first direction, and distances between both ends of the mounting portion along the first direction and the fault prevention portion are not equal.

5. The connecting member is a positioning portion detachably connected to the mounting portion and having the insertion hole; a connection portion connected to the positioning portion and having the signal insertion hole provided therein.

4. The voltage input connection structure of a relay according to claim 3.

6. 6. The voltage input connection structure of a relay according to claim 5, wherein a locking hook is provided on one of the positioning portion and the mounting portion, and an engaging clip is provided on the other, and the locking hook is connected to the engaging clip.

7. The positioning portion has an accommodating cavity for accommodating the mounting portion on a side facing the erroneous insertion prevention member, The connection position between the locking hook and the engagement clip is provided inside the positioning part.

7. A voltage input connection structure for a relay according to claim 6.

8. The locking hook is provided on the mounting portion along the height direction of the shell of the relay, or The engaging clip is provided on the mounting portion along the height direction of the shell of the relay.

7. A voltage input connection structure for a relay according to claim 6.

9. the number of the locking hooks and the engagement clips is plural, The plurality of locking hooks are connected to the plurality of engaging clips in a corresponding manner, The plurality of locking hooks are provided on both sides of the mounting portion along the height direction of the shell of the relay. The voltage input connection structure of a relay according to claim 8.

10. 7. The voltage input connection structure of a relay according to claim 6, wherein the locking hook or the engagement clip provided on the mounting part, the mounting part, and the mistake prevention part are integrally molded.

11. The connector assembly further includes a plurality of signal lines arranged along a first direction, The plurality of signal lines are inserted into the corresponding signal insertion holes along a second direction and are electrically connected to the plurality of relay coil pins; The first direction and the second direction are perpendicular to each other.

2. The voltage input connection structure of a relay according to claim 1.

12. the erroneous insertion prevention member is provided to extend along the first direction and is provided side by side with the relay coil pin along a third direction, The third direction is perpendicular to the first direction and the second direction. The voltage input connection structure of a relay according to claim 11.

13. 12. The voltage input connection structure for a relay according to claim 11, wherein the signal line is detachably connected to the connection member.

14. A relay, A relay including a shell, a coil, and a voltage input connection structure for a relay according to any one of claims 1 to 13. The coil is provided within the shell, The relay coil pin of the voltage input connection structure of the relay is a lead-out end of the coil. relay.

15. 15. The relay according to claim 14, wherein the erroneous insertion prevention member of the voltage input connection structure of the relay and the shell of the relay are formed as an integral structure.

16. 15. The relay of claim 14, further comprising a load terminal disposed at least partially within the shell.

17. The shell is The bottom plate and a first side plate provided perpendicular to the bottom plate and from which at least a portion of the load terminal is led out; a second side plate disposed perpendicular to the bottom plate and adjacent to the first side plate, and the second side plate is disposed perpendicular to the first side plate; The erroneous insertion prevention member of the voltage input connection structure of the relay is provided on the second side plate.

17. The relay of claim 16.

18. 18. The relay according to claim 17, wherein the second side plate is provided with a recess, and the erroneous insertion prevention member is provided in the recess.

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