Circuit board anti-burning protector

Abstract

The utility model belongs to the technical field of line protection devices, and provides a circuit board anti-burning protector, which comprises a fuse used for automatically fusing when overload or short circuit occurs in a circuit, and a protection sleeve arranged outside the fuse and used for protecting the circuit board from burning. The protective sleeve is used for preventing the fuse from being interfered or damaged by an external environment in a normal working state and facilitating the installation and replacement of the fuse; and the bottom box is installed at the lower end of the protective sleeve, and the bottom box is used for installing the protector in a circuit board and is used for supporting and protecting the fuse. The fuse is sealed through the protective sleeve, the bottom box, the limiting piece and the guiding piece, direct contact between the fuse and the external environment can be effectively isolated, the electric shock risk caused by mistaken touch or circuit faults can be remarkably reduced, the influence of physical factors such as vibration and impact in the external environment on the fuse can be reduced, and the service life of the fuse is prolonged. And poor circuit contact caused by the influence of the fuse is avoided, so that the stability and the reliability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of line protection device, specifically a line board prevents burning protector. BACKGROUND

[0002] Micro LED module is the product based on LED miniaturization and matrix technology. It miniaturizes the traditional inorganic LED array, and each micron-level LED pixel point can be independently positioned and lit. These micron-level LED pixel points are integrated on a chip or substrate through precise manufacturing and assembly processes, forming a high-density, individually driven LED array.

[0003] The Micro LED module circuit may encounter various loads or short circuits during operation. When a load or short circuit occurs, it can easily cause the line board to overheat, damage, or even fire and other serious consequences. Therefore, a fuse needs to be installed in the Micro LED module line board. The fuse can quickly disconnect the circuit when the current exceeds the rated value, thereby avoiding damage caused by overloading. This protection mechanism is crucial to ensure the stability and safety of the Micro LED module circuit.

[0004] Currently, although the method of directly connecting a fuse in the line board achieves basic current protection function, it lacks the necessary protection mechanism to cope with external environmental challenges. Specifically, when moisture, dust and other impurities invade the installation environment of the fuse or the circuit board area, it is easy to cause circuit short circuit or lead to fuse failure, which not only weakens its due protection effect, but also may cause further damage to the circuit system. More seriously, in the extreme case of circuit overload or short circuit, the fuse may be accompanied by sparks when it is blown, thereby greatly increasing the risk of fire caused thereby. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a line board burn protection device to solve the above problems.

[0006] A line board burn protection device, comprising:

[0007] A fuse for automatically fusing when an overload or short circuit occurs in the circuit;

[0008] A protective sleeve is provided outside the fuse, which is used to prevent the fuse from being disturbed or damaged by the external environment in the normal working state and facilitate the installation and replacement of the fuse;

[0009] A bottom box is installed at the lower end of the protective sleeve, which is used to install the protector in the line board and support and protect the fuse;

[0010] The limiting pieces are arranged in the inside of the bottom box, and the limiting pieces are arranged in two, and the limiting pieces are used for limiting the protective sleeve;

[0011] The guide is mounted in the inside of the bottom box, and the guide is used for driving the limiting pieces to move along the bottom box, changes the position of the limiting pieces, and is used for locking and unlocking the protective sleeve.

[0012] Preferably, the limiting piece comprises a fixed column fixedly installed in the inside of the bottom box, a connecting column slidingly installed in the inside of the bottom box, an elastic piece fixedly installed on the outer surface of the fixed column, and the elastic piece is fixedly connected with the connecting column.

[0013] Preferably, the inside of the bottom box is slidingly installed with a moving groove, the moving groove is fixedly connected with the connecting column, and the moving groove is abutted with the protective sleeve.

[0014] Preferably, the lower end of the moving groove is fixedly installed with an elastic sheet, the free end of the elastic sheet is fixedly installed with a limiting plate, and the limiting plate is abutted with the protective sleeve.

[0015] Preferably, the inside of the bottom box is provided with a limiting groove at the lower end, the inside of the limiting groove is provided with a ramp, the free end of the elastic sheet is located in the inside of the limiting groove, and the free end of the elastic sheet and the lower end of the limiting plate are abutted with the ramp.

[0016] Preferably, the guide comprises a guide rail and a clamping groove arranged on the upper end of the moving groove, the inside of the guide rail is slidingly installed with a sliding clamping rod, and the sliding clamping rod is clamped with the clamping groove.

[0017] Preferably, one side of the bottom box is provided with a mounting groove, and one end of the guide rail is rotatably connected with the mounting groove.

[0018] Preferably, the guide rail comprises a straight guide rail, an inclined guide rail and a separate guide rail.

[0019] Preferably, the upper end of the bottom box is provided with a box cover, and the box cover is used for closing the bottom box.

[0020] Compared with the prior art, the utility model has the advantages of:

[0021] 1、The utility model discloses a bottom box, sliding clamping rod, clamping groove and limiting plate and other components synergies, realize the effective locking of the protective sleeve and the fuse, and this locking mechanism can prevent the protective sleeve and the fuse from falling off, thereby avoiding the circuit failure or safety accident caused by the exposure or loosening of the fuse, when the fuse is burnt off, the user only needs to simply push the protective sleeve and cancel the pushing force, and the elastic potential energy of the elastic piece can be used to complete the unlocking, and then the new fuse is easily taken out and replaced.

[0022] 2, The utility model discloses a fuse is sealed through protective sleeve, bottom box, limiting piece and guide piece, can effectively isolate the direct contact between fuse and external environment, thereby significantly reduce the electric shock risk caused by mistake or circuit fault, and can reduce the influence of vibration, impact and other physical factors in external environment to fuse, avoid the poor contact of circuit caused by its influence, can improve its stability and reliability in turn, secondly can prevent moisture, dust and other impurities from contacting fuse 1, avoid the circuit short circuit or fuse failure caused by damp or pollution, can effectively isolate the erosion of external environment to fuse, therefore can significantly prolong the service life of fuse, finally, under certain circumstances, such as circuit overload or short circuit, fuse can melt and produce spark. Sealing treatment can reduce the possibility of spark splash, thereby reducing the fire risk. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure schematic diagram of the utility model;

[0024] Figure 2 It is internal first visual angle structure schematic diagram of the utility model;

[0025] Figure 3 It is partial structure schematic diagram of the utility model;

[0026] Figure 4 It is partial structure schematic diagram of the utility model;

[0027] Figure 5 It is internal second visual angle structure schematic diagram of the utility model;

[0028] Figure 6 It is the utility model's Figure 2 Local enlarged view of A in the middle.

[0029] In the drawing:

[0030] 1, fuse; 2, protective sleeve; 3, bottom box; 4, box cover; 5, limiting piece; 51, fixed column; 52, elastic piece; 53, connecting column; 54, moving groove; 55, limiting groove; 56, ramp; 57, elastic sheet; 58, limiting plate; 6, guide piece; 61, guide track; 62, clamping groove; 63, sliding clamping rod; 64, installation groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. It should be pointed out that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the drawings, the relative size and proportion of the parts shown in the drawings are exaggerated or reduced in size for illustration, and any size is only exemplary, rather than limiting.

[0032] As shown in the accompanying Figure 1 to the accompanying Figure 6 drawings:

[0033] Embodiment one: the utility model provides a circuit board burn protection device, include:

[0034] Fuse 1, the fuse 1 is used to automatically fuse when overload or short circuit occurs in the circuit;

[0035] Protective sleeve 2 is arranged outside the fuse 1, the protective sleeve 2 is used to prevent the fuse 1 from being disturbed or damaged by the external environment in the normal working state and facilitate the installation and replacement of the fuse 1;

[0036] Bottom box 3 is installed at the lower end of the protective sleeve 2, the bottom box 3 is used to install the protector in the circuit board, for supporting and protecting the fuse 1;

[0037] Limiting piece 5 is arranged inside the bottom box 3, the limiting piece 5 is provided with two, the limiting piece 5 is used to limit the protective sleeve 2;

[0038] Guide 6 is installed inside the bottom box 3, the guide 6 is used to drive the limiting piece 5 to move along the bottom box 3, change the position of the limiting piece 5, for locking and unlocking the protective sleeve 2.

[0039] From the above, by welding the bottom box 3 in the circuit of the circuit board, then the protector is installed to the circuit board, the protective sleeve 2 with the fuse 1 already installed inside is inserted into the inside of the bottom box 3. In this process, the protective sleeve 2 will contact the limiting piece 5, and this contact will make the guide 6 move. With the movement of the guide 6, the limiting piece 5 will also displace correspondingly, so as to realize the locking of the protective sleeve 2, after locking, the two ends of the fuse 1 are connected to the circuit, so that it can normally play a role. When the circuit is overloaded or short-circuited, the fuse 1 will automatically fuse, thereby rapidly cutting off the circuit, protecting other elements and equipment in the circuit from being damaged, if the fuse 1 is broken and needs to be replaced, the personnel can push the protective sleeve 2 forward. This pushing action will make the guide 6 move again and drive the limiting piece 5 to displace, so as to unlock the protective sleeve 2. Once the locking is unlocked, the protective sleeve 2 can be taken out of the bottom box 3, and then a new fuse 1 is replaced.

[0040] Embodiment two: the second embodiment of the utility model, comprising:

[0041] Fuse 1, the fuse 1 is used to automatically fuse when overload or short circuit occurs in circuit;

[0042] Protective sleeve 2 is arranged outside fuse 1, the protective sleeve 2 is used to prevent fuse 1 from being disturbed or damaged by external environment in normal working state and facilitate installation and replacement of fuse 1;

[0043] Bottom box 3 is installed at the lower end of protective sleeve 2, the bottom box 3 is used to install the protector in the circuit board, for supporting and protecting fuse 1;

[0044] Limiting piece 5 is arranged inside bottom box 3, the limiting piece 5 is provided with two, the limiting piece 5 is used to limit protective sleeve 2;

[0045] The limiting piece 5 includes fixed column 51 fixedly installed in the inside of bottom box 3, connecting column 53 is slidably installed in the inside of bottom box 3, elastic piece 52 is fixedly installed on the outer surface of fixed column 51, and elastic piece 52 is fixedly connected with connecting column 53.

[0046] Connecting column 53 is slidably installed in the inside of bottom box 3, the moving groove 54 is fixedly connected with the connecting column 53, and the moving groove 54 is abutted with the protective sleeve 2.

[0047] The lower end of the moving groove 54 is fixedly installed with elastic sheet 57, the free end of the elastic sheet 57 is fixedly installed with limiting plate 58, and the limiting plate 58 is abutted with the protective sleeve 2.

[0048] The inside of the limiting groove 55 is provided with slope 56, the free end of the elastic sheet 57 is located in the inside of the limiting groove 55, and the free end of the elastic sheet 57 and the lower end of the limiting plate 58 are abutted with the slope 56.

[0049] Guide 6 is installed in the inside of bottom box 3, the guide 6 is used to drive limiting piece 5 to move along bottom box 3, change the position of limiting piece 5, for locking and unlocking protective sleeve 2, the guide 6 includes guide rail 61 and clamping groove 62, which are arranged on the upper end of moving groove 54, sliding clamping rod 63 is slidably installed in the inside of guide rail 61, and sliding clamping rod 63 is clamped with clamping groove 62. One end of the guide rail 61 is rotatably connected with the mounting groove 64. The guide rail 61 includes straight guide rail, inclined guide rail and separate guide rail.

[0050] From the above, in specific use, first need to insert the protective sleeve 2 with the built-in fuse 1 into the inside of the bottom box 3. In this insertion process, the protective sleeve 2 protruding part will abut to the moving groove 54, and then push the moving groove 54 to move forward on the bottom box 3. This forward movement causes the free end of the sliding clamping rod 63 to move under the guidance of the guide rail 61. The free end of the sliding clamping rod 63 will smoothly transition from the straight rail area to the inclined rail area, and finally be clamped in the clamping groove 62. At the same time, as the moving groove 54 moves forward, the elastic piece 52 will be gradually stretched, and the elastic piece 57 at the lower end of the moving groove 54 will also move forward. The free end of the elastic piece 57 and the limiting plate 58 are gradually moved forward and raised along the slope 56 under the driving of the moving groove 54. When the sliding clamping rod 63 is completely clamped in the clamping groove 62, the limiting plate 58 is just raised to its highest point, thereby forming effective blocking and locking of the protective sleeve 2;

[0051] When the fuse 1 is burned out, push the protective sleeve 2 forward and then remove the pushing force. In the process of pushing, the moving groove 54 moves forward again, so that the free end of the sliding clamping rod 63 enters the separation rail and then returns to the straight rail. In this process, the limiting groove 55 moves backward under the elastic potential energy of the elastic piece 52 and presses the elastic piece 57, driving the elastic piece 57 and the limiting plate 58 to slide down along the slope 56, so that the free end of the elastic piece 57 and the limiting plate 58 return to the inside of the limiting groove 55, and then the limiting plate 58 no longer locks the protective sleeve 2. The protective sleeve 2 is taken out and a new fuse 1 is replaced;

[0052] Through the cooperation of the bottom box 3, the sliding clamping rod 63, the clamping groove 62, and the limiting plate 58, effective locking of the protective sleeve 2 and the fuse 1 is achieved. This locking mechanism can prevent the protective sleeve 2 and the fuse 1 from falling off, thereby avoiding circuit failure or safety accidents caused by exposure or loosening of the fuse 1. When the fuse 1 is burned out, the user only needs to simply push the protective sleeve 2 and remove the pushing force, and then use the elastic potential energy of the elastic piece 52 to complete the unlocking, and then easily take out and replace a new fuse 1. This process does not require the use of additional tools or complex steps, and is convenient to use.

[0053] The fuse 1 is sealed by the protective sleeve 2, the bottom box 3, the limiting piece 5 and the guide piece 6, direct contact between the fuse 1 and the external environment can be effectively isolated, so that the risk of electric shock caused by accidental touch or circuit failure is significantly reduced, and the influence of physical factors such as vibration and impact in the external environment on the fuse 1 can be reduced, so that the fuse 1 is not affected by the physical factors to cause poor circuit contact, thereby improving the stability and reliability of the fuse 1. Secondly, it can prevent moisture, dust and other impurities from contacting the fuse 1, avoid circuit short circuit or fuse 1 failure caused by moisture or pollution, effectively isolate the erosion of the external environment to the fuse 1, so as to significantly prolong the service life of the fuse 1. Finally, in a specific situation, such as circuit overload or short circuit, the fuse 1 may be fused to produce sparks. Sealing treatment can reduce the possibility of spark spatter, thereby reducing the risk of fire.

[0054] Embodiment three: the third embodiment of the utility model, comprising:

[0055] The fuse 1 is used for automatically fusing when overload or short circuit occurs in the circuit;

[0056] The protective sleeve 2 is arranged outside the fuse 1, and the protective sleeve 2 is used for preventing the fuse 1 from being disturbed or damaged by the external environment in the normal working state and facilitating the installation and replacement of the fuse 1;

[0057] The bottom box 3 is installed at the lower end of the protective sleeve 2, and the bottom box 3 is used for installing the protector in the circuit board and supporting and protecting the fuse 1;

[0058] The limiting piece 5 is arranged in the interior of the bottom box 3, and the limiting piece 5 is provided with two, and the limiting piece 5 is used for limiting the protective sleeve 2;

[0059] The guide piece 6 is installed in the interior of the bottom box 3, and the guide piece 6 is used for driving the limiting piece 5 to move along the bottom box 3, changing the position of the limiting piece 5, and locking and unlocking the protective sleeve 2.

[0060] The bottom box 3 is provided with the box cover 4 at the upper end, and the box cover 4 is used for closing the bottom box 3.

[0061] As can be seen from the above, the limiting piece 5 and the guide piece 6 are installed in the bottom box 3, and the protective sleeve 2 and the fuse 1 are protected in the bottom box 3 by the limiting piece 5 and the guide piece 6, and then sealed by the box cover 4. A protective space is effectively formed by the bottom box 3 and the box cover 4, thereby improving the stability and reliability of the protector.

[0062] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein. The contents not described in detail in the description all belong to the prior art known by the person skilled in the art.

[0063] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. The meaning of "multiple" is two or more, unless otherwise specifically limited.

[0064] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0065] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0066] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0067] The present application discloses the embodiments in the drawings, only relate to the structure involved in the embodiments of the present application, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other.

[0068] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A line board burn protector, characterized by: Include: Fuse (1), the fuse (1) is used for automatic fusing when overload or short circuit occurs in the circuit; Protective sleeve (2) is arranged outside the fuse (1), the protective sleeve (2) is used for the fuse (1) not to be disturbed or damaged by the external environment in the normal working state and the installation and replacement of the fuse (1) are convenient; The bottom box (3) is installed at the lower end of the protective sleeve (2), and the bottom box (3) is used for installing the protector in the circuit board, supporting and protecting the fuse (1); The limiting piece (5) is arranged in the bottom box (3), the limiting piece (5) is provided with two, the limiting piece (5) is used for limiting the protective sleeve (2); The guide (6) is installed in the bottom box (3), the guide (6) is used for driving the limiting piece (5) to move along the bottom box (3), changing the position of the limiting piece (5), and locking and unlocking the protective sleeve (2).

2. The line board burn protector of claim 1, wherein: The limiting piece (5) includes a fixed column (51) fixedly installed in the bottom box (3), a connecting column (53) slidably installed in the bottom box (3), and an elastic piece (52) fixedly installed on the outer surface of the fixed column (51), and the elastic piece (52) is fixedly connected with the connecting column (53).

3. The protection device for preventing burn of a circuit board according to claim 1, wherein: The bottom box (3) is slidably installed with a moving groove (54), the moving groove (54) is fixedly connected with the connecting column (53), and the moving groove (54) is in abutment with the protective sleeve (2).

4. The protection device for preventing burn of a circuit board according to claim 3, wherein: The lower end of the moving groove (54) is fixedly installed with an elastic sheet (57), the free end of the elastic sheet (57) is fixedly installed with a limiting plate (58), and the limiting plate (58) is in abutment with the protective sleeve (2).

5. The line board burn protector of claim 4, wherein: The bottom box (3) is provided with a limiting groove (55) at the lower end, the limiting groove (55) is provided with a ramp (56) inside, the free end of the elastic sheet (57) is located in the limiting groove (55), and the free end of the elastic sheet (57) and the lower end of the limiting plate (58) are in abutment with the ramp (56).

6. The line board burn protector of claim 5, wherein: The guide (6) includes a guide rail (61) and a clamping groove (62) formed on the upper end of the moving groove (54), the sliding clamping rod (63) is slidably installed in the guide rail (61), and the sliding clamping rod (63) is clamped with the clamping groove (62).

7. The line board burn-in protector of claim 6, wherein: One side of the bottom box (3) is provided with a mounting groove (64), and one end of the guide rail (61) is rotatably connected with the mounting groove (64).

8. The line board burn-in protector of claim 6, wherein: The guide rail (61) includes a straight guide rail, an inclined guide rail and a separate guide rail.

9. The line board burn-in protector of claim 6, wherein: the first and second conductive layers are formed of a conductive material selected from the group consisting of copper, aluminum, silver, gold, and combinations thereof. The upper end of the bottom box (3) is provided with a box cover (4), and the box cover (4) is used for closing the bottom box (3).

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