An input surge spring fuse protector for POE

Abstract

The utility model discloses a kind of input surge spring fuse protection for POE, belong to electrical protection device technical field, the protector includes protector ontology, side plate and sealing assembly, the inner wall of protector ontology is equipped with sealing groove, sealing assembly includes the first spring being installed in sealing groove, the first sealing plate being supported by the first spring, the second sealing plate being connected with the first sealing plate, and the first screw being screwed through side plate, the protector further includes fixed plate and fixed assembly, fixed assembly includes fixed block being fixed on side plate, the clamping block being slidably connected in fixed block and being supported by the second spring, and the second screw for locking fixed block and fixed plate. The utility model provides continuous elastic pre-tightening force by spring, solve the problem that traditional sealing is invalid due to aging or temperature difference, reach the effect that sealing performance is stable and reliable, can compensate deformation, long-acting waterproof dustproof and installation is stable.

Description

Technical Field

[0001] This utility model relates to the field of electrical protection device technology, and in particular to an input surge spring fuse protector for POE. Background Technology

[0002] Power over Ethernet (PoE) technology allows power to be supplied to remote devices such as network cameras and wireless access points via network cables, simplifying cabling and installation. With the widespread application of PoE technology in security monitoring, industrial automation, and outdoor communications, surge protectors that provide protection for these devices have become crucial.

[0003] These PoE protectors are often installed in outdoor cabinets, poles, or in complex industrial plants, inevitably facing challenges such as humidity, rain, dust, and cyclical high and low temperatures. These environmental factors place extremely high demands on the sealing performance of the protector's housing. Once the seal fails, moisture or dust can enter, potentially causing short circuits, corrosion, or performance degradation of the internal precision surge protection circuits or spring-fuse modules.

[0004] Currently, many protectors use traditional sealing methods, such as placing a rubber gasket between the housing and the cover plate, and then tightening it with multiple screws for rigid compression. This sealing structure may provide some protection during initial installation. However, this rigid compression sealing method has inherent defects. During long-term use, especially after experiencing repeated thermal expansion and contraction caused by diurnal temperature differences, or after the sealing material itself ages and hardens, the original compression force will gradually weaken or become unevenly distributed, resulting in tiny gaps between the gasket and the housing. This significantly reduces the sealing performance and ultimately causes it to lose its due protective function, leading to damage to the internal circuitry and seriously affecting the safety and reliability of the PoE system.

[0005] Therefore, this utility model proposes an input surge spring fuse protector for POE to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the technology of input surge spring fuse protectors for PoE, such as simple sealing structure, reliance on rigid compression, easy gap formation due to temperature difference or material aging leading to sealing failure, unreliable waterproof and dustproof performance, and thus affecting the stability of internal circuit, this utility model aims to provide an input surge spring fuse protector for PoE with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an input surge spring fuse protector for POE, comprising: a protector body, a sealing groove formed on the inner wall of the protector body, and a side plate.

[0008] The protector also includes a sealing assembly disposed between the protector body and the side plate. The sealing assembly includes: a first spring installed in the sealing groove, and a first sealing plate elastically supported by the first spring. It also includes a second sealing plate that is interlocked with the first sealing plate. The sealing assembly further includes a first screw.

[0009] Furthermore, the first screw passes through the side plate and is tightened to press the second sealing plate and the first sealing plate together. In this combination, when the first screw presses the two sealing plates together, it will further compress the first spring. The continuous elastic deformation force of the first spring ensures that the sealing assembly always maintains a tight seal.

[0010] Preferably, one end of the first spring is fixedly connected to the inner wall of the sealing groove, and the other end of the first spring is connected to the first sealing plate. This structure defines the installation state of the first spring and ensures that it stably transmits elastic force during compression.

[0011] Preferably, the protector further includes a fixing plate with a slot inside. The protector also includes a fixing component, which includes a fixing block fixedly mounted on the outer wall of the side plate. The fixing component also includes a locking block slidably connected within the fixing block. The fixing component further includes a second spring disposed within the fixing block and elastically abutting the locking block, so that the locking block can be retractably inserted into the slot. The fixing component also includes a second screw passing through the fixing block and screwed into the fixing plate to lock the fixing block and the fixing plate together.

[0012] Preferably, two locking blocks are slidably connected within the fixing block. This symmetrical arrangement allows the operator to simultaneously pinch the two locking blocks from both sides, causing them to retract inward.

[0013] Preferably, the second spring is disposed between the two locking blocks to separate them from each other, and the elastic force of the second spring drives the two locking blocks to pop outward under normal conditions so as to reliably lock into the locking slot.

[0014] Preferably, the protector body is also provided with an interface, which is used to realize electrical connection with an external PoE line and is an input and output channel for electrical energy and signals.

[0015] Preferably, the protector body internally houses a surge protection circuit and a spring-loaded fuse module, the surge protection circuit and the spring-loaded fuse module being used to implement electrical protection functions.

[0016] Preferably, the terminals of the interface are electrically connected to the surge protection circuit and the spring-loaded fuse module to form a complete electrical path for the protector, so that the current and signal passing through the interface are protected by the circuit and the module.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of simple sealing structure of POE protector in the prior art, which is prone to sealing performance decline due to material aging or temperature change, and water vapor and dust intrusion. It achieves stable and reliable sealing performance, can compensate for deformation, and has long-lasting waterproof, dustproof and moisture-proof technical effects.

[0018] 2. This utility model, by setting a fixing component, uses a spring-driven card block to first insert into the card slot of the fixing plate for quick positioning, and then uses a second screw for secondary locking and fixing. This solves the problems of the existing technology where the fixing method of the protector is single, the installation is cumbersome, or it is easy to loosen and fall off under vibration and impact. It achieves the technical effect of convenient and fast installation, stable and reliable fixing, and strong anti-vibration and anti-impact capabilities.

[0019] 3. This utility model solves the problems of poor environmental adaptability and easy electrical failure due to physical failure of existing POE protectors by accommodating the surge protection circuit and spring-loaded fuse module in the protector body, and combining them with highly reliable elastic sealing components and quick-release locking fixing components. It achieves the technical effect of high structural integration, comprehensive functions, long-term stable operation in humid, dusty and vibrating environments, and improved safety of POE power supply lines. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an input surge spring fuse protector for POE proposed in this utility model; Figure 2 This is a schematic diagram of the sealing assembly of an input surge spring fuse protector for POE proposed in this utility model. Figure 3 This is a schematic diagram of the slot structure of an input surge spring fuse protector for POE proposed in this utility model; Figure 4 This is a schematic diagram of the block structure of an input surge spring fuse protector for POE proposed in this utility model.

[0021] Legend: 1. Protector body; 2. Side plate; 3. Fixing plate; 4. Interface; 5. Sealing assembly; 501. Sealing groove; 502. First spring; 503. First sealing plate; 504. Second sealing plate; 505. First screw; 6. Fixing assembly; 601. Slot; 602. Fixing block; 603. Second screw; 604. Second spring; 605. Locking block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 4 This utility model provides an input surge spring fuse protector for POE, which aims to solve the problems of insufficient sealing performance of the housing of existing POE protectors, susceptibility to moisture or contamination, and low operational reliability due to insufficient stability of the installation and fixing structure under vibration.

[0024] like Figure 1 As shown, the input surge spring fuse protector for PoE includes a protector body 1, and side plates 2 and a fixing plate 3 installed on both sides of the protector body 1. The protector body 1 serves as an integral load-bearing structure to house the surge protection circuit and the spring fuse module. The protector body 1 is also provided with an interface 4, the terminals of which are electrically connected to the surge protection circuit and the spring fuse module. The fixing plate 3 is used to install the entire protector on a cabinet or mounting bracket. The side plates 2 and the protector body 1 are sealed together by a sealing component 5. The outer wall of the side plates 2 also supports a part of the fixing component 6, which cooperates with the fixing plate 3 to achieve fixation.

[0025] The sealing assembly 5 is disposed between the protector body 1 and the side plate 2 to achieve environmental sealing between the two. The sealing assembly 5 includes a first spring 502, a first sealing plate 503, a second sealing plate 504, and a first screw 505.

[0026] A sealing groove 501 is provided on the inner wall of the protector body 1. A first spring 502 is installed in the sealing groove 501. In a specific embodiment, one end of the first spring 502 is fixedly connected to the inner wall of the sealing groove 501, and the other end is connected to the first sealing plate 503.

[0027] The first sealing plate 503 is elastically held by the first spring 502, while the second sealing plate 504 is interlocked with the first sealing plate 503, and the two together constitute the main body of the sealing structure.

[0028] In the assembled state, the first screw 505 passes through the side plate 2 and is tightened to press the second sealing plate 504 and the first sealing plate 503 together. This pressing causes the second sealing plate 504 and the first sealing plate 503 to compress the first spring 502 together and produce elastic deformation, thereby using the continuous elastic force of the first spring 502 to form a stable and reliable sealing interface between the protector body 1 and the side plate 2.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to ensure the stable application of the spring force, one end of the first spring 502 is fixedly connected to the inner wall of the sealing groove 501, and the other end is connected to the first sealing plate 503. This structure ensures that the first spring 502 always stays in the correct position during compression and rebound and does not shift.

[0030] In a preferred embodiment, to achieve quick installation and secure locking of the device, the protector also includes a fixing plate 3 and a fixing component 6. The fixing plate 3 has a slot 601 inside. The fixing component 6 includes a fixing block 602, a locking block 605, a second spring 604, and a second screw 603. The fixing block 602 is fixedly installed on the outer wall of the side plate 2. The locking block 605 is slidably connected inside the fixing block 602. The second spring 604 is disposed inside the fixing block 602 and elastically holds the locking block 605, driving the locking block 605 to retract into the slot 601 to achieve initial locking and positioning. The second screw 603 passes through the fixing block 602 and is screwed into the fixing plate 3 for secondary locking and fixing of the fixing block 602 and the fixing plate 3.

[0031] In a preferred embodiment, to facilitate the operator's pinching, two locking blocks 605 are slidably connected inside the fixing block 602, and the operator can pinch the two locking blocks 605 at the same time to make them retract inward.

[0032] In a preferred embodiment, in order to provide symmetrical reset force, a second spring 604 is disposed between the two locking blocks 605. Its function is to separate them from each other. When the operator releases the spring, the second spring 604 pushes the two locking blocks 605 to pop out in opposite directions and lock into the slot 601.

[0033] In a preferred embodiment, in order to enable the access of electrical energy and signals, the protector body 1 is also provided with an interface 4. In order to realize the electrical protection function, the protector body 1 contains a surge protection circuit and a spring-loaded fuse module. In order to form a complete protection circuit path, the terminals of the interface 4 are electrically connected to the surge protection circuit and the spring-loaded fuse module.

[0034] The working principle of the input surge spring fuse protector for PoE of this utility model is as follows: When the protector is needed, the external PoE power supply line establishes an electrical connection with the protector body 1 through interface 4. The electrical signal and power enter the protector body 1 through interface 4. The internal surge protection circuit and the spring-loaded fuse module jointly achieve dual protection. When a surge or abnormal current occurs at the input terminal, the internal surge protection circuit first acts to absorb the surge energy. At the same time, the spring-loaded fuse module quickly disconnects the circuit under the action of high temperature or inrush current, achieving rapid isolation, thereby effectively preventing the surge energy from continuing to be conducted to downstream equipment.

[0035] During the assembly and operation of the sealing assembly 5, the first spring 502 is installed in the sealing groove 501 of the protector body 1. The first sealing plate 503 is elastically held by the first spring 502 and is interlocked with the second sealing plate 504. When the side plate 2 is installed, the operator tightens the first screw 505. The first screw 505 passes through the side plate 2 and applies pressure to the second sealing plate 504. The second sealing plate 504 then presses against the first sealing plate 503, which together compresses the first spring 502 installed in the sealing groove 501. This causes the first spring 502 to generate continuous elastic deformation and reaction force. This elastic force tightly presses against the sealing plate, thereby forming an efficient and stable environmental seal between the protector body 1 and the side plate 2, effectively improving the waterproof, dustproof and moisture-proof performance.

[0036] During the installation and operation of the fixing component 6, when it is necessary to fix the protector, the operator first pinches the two locking blocks 605 set in the fixing block 602, so that they overcome the elastic force of the second spring 604 and move closer or retract towards each other, so that the locking blocks 605 can be inserted into the slots 601 inside the fixing plate 3 to complete the initial docking and limiting. After releasing the locking blocks 605, the second spring 604 separates them and locks them into the slots 601. After docking is completed, the operator rotates the second screw 603. The second screw 603 passes through the fixing block 602 and screws into the fixing plate 3 to lock the fixing block 602 and the fixing plate 3 for a second time, thereby achieving a stable connection of the structure. While providing quick assembly convenience, it ensures that the entire protector can remain stable under vibration and impact environments.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An input surge spring fuse protector for POE, comprising a protector body (1) and a side plate (2), wherein a sealing groove (501) is provided on the inner wall of the protector body (1). Its features are, The protector also includes a sealing assembly (5), which is disposed between the protector body (1) and the side plate (2). The sealing assembly (5) includes a first spring (502), a first sealing plate (503), a second sealing plate (504), and a first screw (505). The first spring (502) is installed in the sealing groove (501). The first sealing plate (503) is elastically held by the first spring (502). The second sealing plate (504) is engaged with the first sealing plate (503). The first screw (505) passes through the side plate (2) and is tightened to press the second sealing plate (504) and the first sealing plate (503) together, thereby compressing the first spring (502).

2. The input surge spring fuse protector for PoE according to claim 1, characterized in that, One end of the first spring (502) is fixedly connected to the inner wall of the sealing groove (501), and the other end is connected to the first sealing plate (503).

3. The input surge spring fuse protector for PoE according to claim 1, characterized in that, It also includes a fixing plate (3) and a fixing component (6), wherein the fixing plate (3) has a slot (601) inside; The fixing component (6) includes a fixing block (602), a locking block (605), a second spring (604), and a second screw (603). The fixing block (602) is fixedly installed on the outer wall of the side plate (2). The locking block (605) is slidably connected to the fixing block (602). The second spring (604) is disposed in the fixing block (602) and elastically holds the locking block (605) so that the locking block (605) can be retractably inserted into the slot (601). The second screw (603) passes through the fixing block (602) and screws into the fixing plate (3) to lock the fixing block (602) and the fixing plate (3).

4. The input surge spring fuse protector for PoE according to claim 3, characterized in that, Two of the card blocks (605) are slidably connected inside the fixed block (602).

5. The input surge spring fuse protector for PoE according to claim 4, characterized in that, The second spring (604) is disposed between the two locking blocks (605) to separate them from each other.

6. The input surge spring fuse protector for PoE according to claim 1, characterized in that, The protector body (1) is also provided with an interface (4).

7. The input surge spring fuse protector for PoE according to claim 6, characterized in that, The protector body (1) contains a surge protection circuit and a spring-loaded fuse module.

8. The input surge spring fuse protector for PoE according to claim 7, characterized in that, The terminals of the interface (4) are electrically connected to the surge protection circuit and the spring-loaded fuse module.

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