An interface scalable embedding device for portable devices in a substation

Abstract

This utility model discloses a retractable interface embedding device for portable substation equipment, including a shell with an interface side plate. Two identical positioning grooves are arranged parallel to each other on the interface side plate, and an interface PCB circuit board is slidably mounted between the two positioning grooves. The interface side plate also has through holes corresponding to the interfaces on the PCB circuit board. Limiting components are provided within the positioning grooves to allow the interface to extend and retract according to actual needs. This utility model allows the interface to pop out of the device by pressing it, using the limiting components of this application, thus facilitating use and improving the portability and ease of use of the equipment. When not in use, the interface can be retracted into the shell by pressing, thus protecting the interface from external environmental damage and extending the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of substation communication interface technology, and in particular to a retractable embedded device for the interface of portable substation equipment. Background Technology

[0002] Currently, with the intelligent development of power systems, portable devices such as testing instruments and communication terminals are being used more and more widely in substations. These devices typically need to transmit data or supply power to the control system or other equipment in the substation, thus requiring corresponding interfaces. However, most existing interface designs on the market are fixed, and these designs suffer from cumbersome wiring and easily damaged interfaces when carrying and using the equipment, thus affecting the portability and lifespan of the devices. Therefore, designing a device with a retractable and easily embedded interface is particularly important. Utility Model Content

[0003] The purpose of this utility model is to provide a retractable embedded device for the interface of portable equipment in substations, which can facilitate the portable use of interface equipment while effectively protecting the interface from damage caused by external forces.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A retractable embedded device for a portable substation equipment includes a housing with an interface side plate. Two identical positioning grooves are arranged parallel to each other on the interface side plate. An interface PCB circuit board is slidably mounted between the two positioning grooves. The interface side plate is also provided with through holes corresponding to the interfaces on the PCB circuit board, for the interfaces to pass through or retract. Limiting members are provided in the positioning grooves to allow the interfaces to extend and retract according to actual needs.

[0006] The limiting components include an unlocking slider 5, a slider reset spring 6, a push pin 7, a compression spring limiting post 8, and a PCB reset compression spring 9. The push pin 7 is fixedly mounted on the upper surface of the PCB circuit board and is located within the positioning groove 4. The upper end of the positioning groove is also provided with a retraction groove for the push pin 7 to slide, and a limiting groove is provided at the bottom center of the retraction groove to fix and limit the interface when the push pin 7 reaches the limiting groove. A reset cavity is horizontally provided at the left end of the limiting groove. The inner diameter of the reset cavity is smaller than the distance from the limiting groove to the upper end of the PCB circuit board. The slider reset spring is located at the bottom of the reset cavity, with one end fixed to the bottom of the reset cavity and the other end fixed to one end of the unlocking slider 5. The other end of the unlocking slider 5... Two downward-facing limiting protrusions are provided. The left limiting protrusion, near the slider reset spring 6, is used to prevent the unlocking slider from fully entering the reset cavity. The other, the right limiting protrusion, is used to cooperate with the ejector pin for synchronous pullback. The distance between the right limiting protrusion and the left end of the unlocking slider 5 is not less than the length of the limiting groove. A compression spring limiting post 8 is provided on the lower left side of the PCB circuit board. The compression spring limiting post 8 has an L-shaped structure. The short part of the L-shaped compression spring limiting post 8 is fixed to the lower left side of the PCB, and the long part is set to the left. A limiting groove is provided in the positioning slide 4 at the position corresponding to the compression spring limiting post 8. One end of the PCB reset compression spring 9 is fixedly set at the left end of the limiting groove, and the other end is fixed to the long part of the L-shaped compression spring limiting post 8.

[0007] It also includes a locking pin 10, which is fixedly installed on the lower plate surface of the right end of the PCB circuit board. It is used to limit the PCB circuit board after the interface pops out, thereby increasing its stability.

[0008] The height of the naturally extended pin 7 is not greater than the height of the limiting groove to the surface of the PCB circuit board.

[0009] The height of the retraction groove from the PCB board surface gradually decreases from right to left, and the height of the right end of the retraction groove from the PCB board surface is not less than the height of the ejector pin 7 when it is naturally extended, and the height of the left end of the retraction groove from the PCB board surface is not less than the height of the ejector pin 7 when it is naturally compressed.

[0010] The limiting protrusion near the slider reset spring 6 is a rectangular block structure, and the other limiting protrusion is an arc structure.

[0011] In the normal state, the PCB reset spring 9 is located at the rightmost end of the retraction groove, and when the ejector pin 7 is in the limiting groove, the PCB reset spring 9 meets the compression limit value.

[0012] When the slider reset spring 6 is extended to its maximum length, the right limiting protrusion is on the right side of the limiting groove.

[0013] This invention, through optimized structural design, allows the interface to extend and retract freely as needed, reducing device size and improving portability. When needed, pressing the interface causes it to pop out of the device via the limiting component, facilitating use and enhancing portability and ease of use. After use, the interface retracts into the housing; pressing it again retracts the interface into the portable device, protecting it from environmental damage and extending the device's lifespan. The entire device is simple to operate; a simple press is all it takes to use the interface, making it suitable for various complex environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the interface retraction and locking state of this utility model.

[0017] Figure 3 This is a schematic diagram illustrating the key points from locking to releasing when using this utility model;

[0018] In the diagram: 1. Interface side plate; 2. Interface; 3. PCB circuit board; 4. Positioning slide; 5. Unlocking slider; 6. Slider reset spring; 7. Ejector pin; 8. Compression spring limit post; 9. PCB reset compression spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 , 2As shown in Figure 3, this utility model includes a housing with an interface side plate. Two identical positioning grooves 4 are arranged in parallel on the interface side plate. A PCB circuit board 3 with an interface is slidably arranged between the two positioning grooves 4. The interface side plate 1 is also provided with a through hole corresponding to the interface on the PCB circuit board, for the interface 2 to pass through or retract. The positioning groove 4 is provided with a limiting member for the interface to extend and retract according to actual needs.

[0021] The interface side plate 1 is one of the main support and protection structures of the device, usually fixed to the equipment shell, serving to position and support the entire device. It not only guides the extension and retraction of interface 2 but also protects it during these movements, preventing direct external forces from acting on it and reducing the risk of damage. Interface side plate 1 can also serve as an installation reference for other components such as the positioning slide 4. Interface 2 is the core part of the device, used to connect the portable substation equipment to external systems or devices. It can be an SFP optical module interface, USB interface, fiber optic interface, power interface, etc. Through the extension and retraction mechanism, interface 2 can extend or retract from the device as needed. When extended, interface 2 connects to external devices to complete data transmission or power supply; when retracted, interface 2 is protected within the shell, avoiding the influence of the external environment. The PCB circuit board 3 is a key component for the internal electrical connections of the device, used to carry and connect various electronic components. It is connected to interface 2 and is responsible for the electrical signal transmission and control signal processing of the interface. The circuit design on the PCB circuit board 3 determines the function and performance of interface 2, ensuring a stable and reliable electrical connection between the interface and external devices. In addition, pins 7 and spring-loaded limit posts 8 are soldered onto the PCB circuit board 3, which, together with other mechanisms, control the extension and retraction of the interface 2.

[0022] Specifically, the limiting components include an unlocking slider 5, a slider reset spring 6, a ejector pin 7, a pressure spring limiting post 8, and a PCB reset pressure spring 9. The ejector pin 7 is fixedly mounted on the upper surface of the PCB circuit board and is located within the positioning groove 4. The upper end of the positioning groove is also provided with a retraction groove for the ejector pin 7 to slide, and a limiting groove is provided at the bottom center of the retraction groove to fix and limit the interface when the ejector pin 7 reaches the limiting groove. A reset cavity is horizontally provided at the left end of the limiting groove. The inner diameter of the reset cavity is smaller than the distance from the limiting groove to the upper end of the PCB circuit board. The slider reset spring is located at the bottom of the reset cavity, with one end fixed to the bottom of the reset cavity and the other end fixed to one end of the unlocking slider 5. The other end of the unlocking slider 5... One end is provided with two downwardly positioned limiting protrusions. The left limiting protrusion, which is closer to the slider reset spring 6, is used to prevent the unlocking slider from fully entering the reset cavity. The other, the right limiting protrusion, is used to cooperate with the ejector pin for synchronous pullback. The distance between the right limiting protrusion and the left end of the unlocking slider 5 is not less than the length of the limiting groove. A compression spring limiting post 8 is provided on the lower left side of the PCB circuit board. The compression spring limiting post 8 has an L-shaped structure. The short part of the L-shaped compression spring limiting post 8 is fixed to the lower left side of the PCB, and the long part is set to the left. A limiting groove is provided in the positioning slide 4 at the position corresponding to the compression spring limiting post 8. One end of the PCB reset compression spring 9 is fixedly set at the left end of the limiting groove, and the other end is fixed to the long part of the L-shaped compression spring limiting post 8.

[0023] The positioning slide 4, fixed to the interface side plate, serves as a guide for the movement of the PCB circuit board 3. During extension and retraction, the PCB circuit board 3 moves along the channel of the positioning slide 4. The positioning slide 4 ensures that the PCB circuit board 3 and the interface 2 maintain the correct orientation and position during movement, preventing jamming or damage due to deviation from the track. The accuracy of the positioning slide 4 directly affects the smooth extension and retraction of the PCB circuit board 3 and the interface 2, as well as the overall stability of the device.

[0024] The unlocking slider 5 is one of the control mechanisms of the device. Users indirectly control the extension of the interface by operating the unlocking slider 5. The unlocking slider 5 cooperates with the positioning groove 4 and the slider return spring 6. Normally, when the interface 2 is extended, it is in the retracted and locked position of the return spring 6, preventing the interface 2 from failing to extend or retract as expected under authorized conditions. When the user needs to use the interface 2, pushing or pressing the interface 2 indirectly triggers the unlocking slider 5, thereby releasing the lock and allowing the PCB circuit board 3 and the interface 2 to extend under the action of the PCB return spring 6. During the extension process, the unlocking slider 5 automatically resets under the pull of the slider return spring 6, preparing for the next unlocking and extension of the interface 2. The slider return spring 6 is a key component for achieving automatic retraction of the unlocking slider. One end is connected to the positioning groove 4, and the other end is connected to the unlocking slider 5. When the user presses to unlock, the pull of the slider return spring 6 acts on the unlocking slider 5, pulling it back to its initial position. The limiting structure of the unlocking slider 5, namely the left limiting protrusion, ensures that the initial position remains consistent each time. This design not only enhances the automation level of the equipment but also increases the ease of operation.

[0025] The ejector pin 7 consists of a pin seat, a pin head, and an internal compression spring. The ejector pin 7 seat is soldered onto the PCB circuit board 3. Since the internal compression spring is in a compressed state, the pin head is always in the ejected state when there is no external force. When the PCB circuit board 3 moves in the positioning slide groove 4, the extension distance of the pin head also changes due to the constantly changing contact height of the groove wall. When it is in the limiting groove, it is limited to the right and rebounds. When it continues to the left, it will contact and cooperate with the right end of the unlocking slider 5. When it reaches the right limiting protrusion of the unlocking slider 5, it cooperates with the right limiting protrusion. At this time, the ejector pin 7 and the unlocking slider 5 slide together. At this time, under the action of the left limiting protrusion, it reaches the maximum leftward position of the interface. When the operator releases the hand, the ejector pin 7 and the unlocking slider 5 rebound together to the right. When the ejector pin rebounds to the right side of the limiting groove, under the pulling force of the slider reset spring 6, the unlocking slider 5 disengages from the ejector pin 7, thereby realizing the reset of the unlocking slider and the ejector pin, and thus realizing the ejection of the interface.

[0026] The spring-limiting post 8 is used to fix and limit the range of motion of the PCB reset spring. It ensures that the reset spring remains in the predetermined position during extension and retraction, without deviating from its track or malfunctioning. The spring-limiting post 8 is soldered to the PCB circuit board, allowing the PCB circuit board to extend outwards under its natural state due to the compression of the PCB reset spring. The spring-limiting post should be robust and accurately positioned to ensure the proper functioning of the spring, thereby ensuring the reliability of the entire device. The PCB reset spring 9 is a crucial component for extending the PCB circuit board and interface. It is typically used during unlocking; the spring force acts on the spring-limiting post, ejecting the PCB circuit board and interface. The elastic force of the reset spring ensures that the PCB circuit board remains stable during interface operation and quickly returns to the predetermined position after interface retraction, ready for the next use. The selection of the spring needs to balance elasticity and durability to ensure long-term stability.

[0027] It also includes a locking pin 10, which is fixedly mounted on the lower surface of the right end of the PCB circuit board. This locking pin is used to limit the PCB circuit board's movement after the interface pops out, increasing its stability. The locking pin 10 can satisfy the stability limitation after the interface pops out; it can directly cooperate with the positioning slide groove 4. When the interface extends out of the interface side plate 1, the locking pin 10 automatically pops out. When pressed inward, the locking pin 10 can be manually pressed to release the lock before the interface retracts.

[0028] In actual use, the height of the naturally extended ejector pin 7 is no greater than the height of the limiting groove to the surface of the PCB circuit board.

[0029] The height of the retraction groove from the PCB surface gradually decreases from right to left, and the height of the right end of the retraction groove from the PCB surface is not less than the natural extension height of the ejector pin 7, while the height of the left end of the retraction groove from the PCB surface is not less than the natural compression height of the ejector pin 7. The limiting protrusion near the slider reset spring 6 is a rectangular block structure, and the other limiting protrusion is an arc-shaped structure. Under normal conditions, the ejector pin 7 is at the rightmost end of the retraction groove, and when the ejector pin 7 is in the limiting groove, the PCB reset spring 9 meets the compression limit value.

[0030] When the slider reset spring 6 extends to its maximum length, the right-side limiting protrusion is on the right side of the limiting groove. The above-mentioned settings and state limitations are all for achieving a better locking fit during interface extension and retraction.

[0031] In actual use, the interface side plate 1 is installed on the outer shell of the portable device to form a closed chassis. The positioning slide 4 is installed on the interface side plate 1 by screws. The distance between the two mirrored positioning slides 4 needs to be determined according to the width of the PCB circuit board 3. The interface 2, the ejector pin 7, and the spring limiting post 8 are soldered onto the PCB circuit board 3. The unlocking slider 5, the slider reset spring 6, and the PCB reset spring 9 are all embedded inside the positioning slide 4. One end of the slider reset spring 6 is connected to the positioning slide 4, and the other end is connected to the unlocking slider 5. One end of the PCB reset spring 9 contacts the positioning slide 4, and the other end contacts the spring limiting post 8. Figure 3 As shown, during use, when interface 2 is in the extended state ( Figure 3-1 The user can press the locking pin 10 and the surrounding unwired and uncoppered resin board with external force to slide the PCB circuit board 3 along the positioning slide 4 into the equipment. The pin 7 will also come into contact with the groove wall of the positioning slide 4. As the cross-section of the groove wall changes, the pin tip of the pin 7 is compressed. When the pin tip passes through the step of the positioning slide 4, the pin tip of the pin 7 will immediately reset, and the PCB circuit board 3 and the interface 2 will be in a locked state. Figure 3-2 ), continue pressing interface 2, and the ejector pin 7 continues to contact the wall of the positioning groove 4 and the unlocking slider 5. The tip of the ejector pin 7 is compressed. After the tip passes the protruding step of the unlocking slider 5, the tip of the ejector pin 7 springs back and locks. Figure 3-3 At this point, after the user releases the applied external force, the PCB reset spring 9 is in a compressed state, pushing the PCB circuit board 3 and interface 2 outward. In the first half of this process, because the pin of the ejector pin 7 is locked by the protrusion of the unlocking slider 5, the unlocking slider 5 is displaced under the force of the ejector pin 7, and at the same time, the tension of the slider reset spring 6 gradually increases. Figure 3 -4), after reaching the force balance point, the ejector pin 7 passes the protrusion of the unlocking slider 5 and the step of the positioning groove 4. The unlocking slider 5 is reset under the tension of the slider reset spring 6. The PCB circuit board 3 and the interface are extended under the force of the PCB reset spring 9. After the interface is extended into place, the locking ejector pin 10 slides out from the interface side plate 1 and pops out the ejector pin head. At this time, the ejector pin head can effectively prevent the interface from retracting under the external force of insertion.

[0032] This invention, through optimized structural design, allows the interface to extend and retract freely as needed, reducing device size and improving portability. When needed, pressing the interface causes it to pop out of the device via the limiting component, facilitating use and enhancing portability and ease of use. After use, the interface retracts into the housing; pressing it again retracts the interface into the portable device, protecting it from environmental damage and extending the device's lifespan. The entire device is simple to operate; a simple press is all it takes to use the interface, making it suitable for various complex environments.

[0033] In the description of this invention, it should be noted that for directional terms, such as "center," "lateral," and "vertical," the appropriate terms may be used.

[0034] The directions and positional relationships indicated by symbols such as "direction", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0035] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0036] Note that the above description is merely a preferred embodiment and application of the technical principles of the present invention. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the specific embodiments described herein, and may include many other effective embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A retractable embedded interface device for portable substation equipment, characterized in that, The device includes a housing with an interface side plate. The interface side plate has two identical positioning grooves arranged in parallel. The interface PCB circuit board is slidably mounted between the two positioning grooves. The interface side plate also has through holes corresponding to the interfaces on the PCB circuit board, allowing the interfaces to pass through or retract. The positioning grooves are equipped with limiting components to allow the interfaces to extend and retract according to actual needs.

2. The retractable embedded interface device for portable substation equipment according to claim 1, characterized in that: The limiting components include an unlocking slider, a slider reset spring, a ejector pin, a pressure spring limiting post, and a PCB reset pressure spring. The ejector pin is fixedly mounted on the upper surface of the PCB circuit board and within a positioning groove. The upper end of the positioning groove also has a retraction groove for the ejector pin to slide in, and a limiting groove is provided at the bottom center of the retraction groove to fix and limit the interface when the ejector pin reaches the limiting groove. A reset cavity is horizontally provided at the left end of the limiting groove. The inner diameter of the reset cavity is smaller than the distance from the limiting groove to the upper end of the PCB circuit board. The slider reset spring is located at the bottom of the reset cavity, with one end fixed to the bottom of the reset cavity and the other end fixed to one end of the unlocking slider. The other end of the unlocking slider... The PCB circuit board has two downward-facing limiting protrusions. The left limiting protrusion, which is closer to the slider reset spring, is used to prevent the unlocking slider from fully entering the reset cavity. The right limiting protrusion is used to cooperate with the ejector pin for synchronous pullback. The distance between the right limiting protrusion and the left end of the unlocking slider is not less than the length of the limiting groove. A compression spring limiting post is provided on the lower left side of the PCB circuit board. The compression spring limiting post has an L-shaped structure. The short part of the compression spring limiting post is fixed to the lower left side of the PCB circuit board, and the long part is set to the left. A limiting groove is provided in the positioning groove at the position corresponding to the compression spring limiting post. One end of the PCB reset compression spring is fixedly set at the left end of the limiting groove, and the other end is fixed to the long part of the compression spring limiting post.

3. The retractable embedded interface device for portable substation equipment according to claim 1, characterized in that: It also includes a locking pin, which is fixedly installed on the lower plate surface of the right end of the PCB circuit board. It is used to limit the PCB circuit board after the interface pops out, thereby increasing its stability.

4. The retractable embedded interface device for portable substation equipment according to claim 2, characterized in that: The height of the naturally extended pin is no greater than the height of the limiting groove to the surface of the PCB circuit board.

5. The retractable embedded interface device for portable substation equipment according to claim 2, characterized in that: The height of the retraction groove from the PCB board surface gradually decreases from right to left, and the height of the right end of the retraction groove from the PCB board surface is not less than the height of the ejector pin's natural extension, and the height of the left end of the retraction groove from the PCB board surface is not less than the height of the ejector pin's natural compression.

6. The retractable embedded interface device for portable substation equipment according to claim 2, characterized in that: The limiting protrusion near the slider reset spring is a rectangular block structure, and the other limiting protrusion is an arc-shaped structure.

7. The retractable embedded interface device for portable substation equipment according to claim 6, characterized in that: Under normal conditions, the ejector pin is at the rightmost end of the retraction groove, and when the ejector pin is in the limiting groove, the PCB reset spring meets the compression limit value.

8. The retractable embedded interface device for portable substation equipment according to claim 7, characterized in that: When the slider reset spring is extended to its maximum length, the right limiting protrusion is on the right side of the limiting groove.

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