Flame-retardant charger shell

Abstract

The utility model provides a flame-retardant charger shell, which relates to the technical field of charger shells, and comprises a flame-retardant shell, an outer shell, an inner shell and an inner shell, an inner interlayer of the flame-retardant shell is filled with a flame-retardant material; the outer wall of the flame-retardant shell is sleeved with a protection piece in a sliding mode. A buckling cover is buckled and sealed at the top of the flame-retardant shell; a charging pin is fixed on the buckling cover; when the protection piece is in a rising state, the highest end of the protection piece is higher than the highest end of the charging pin on the buckling cover; guide grooves are formed in the left side and the right side of the protection piece. When the charger falls off, the protruding protection piece can replace the charging pin to collide, the situation that the follow-up use risk coefficient is increased due to the fact that the charging pin is damaged due to collision is avoided, and the problems that only sealing waterproof protection is emphasized when the charger and the power strip are inserted, and protection on the pins on the charger is not taken into consideration are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of charger shells, in particular to a flame-retardant charger shell. Background Art

[0002] With the increasing number of intelligent devices that need to be charged, there are more and more various chargers. However, when the charger is in use, the internal circuit may short-circuit or the internal wires may catch fire due to excessive external current. In order to prevent the spread of the combustion, a flame-retardant charger shell is needed to protect and install the internal circuit. For example, the patent with the application number: CN202321475733.1 discloses a flame-retardant and insulating charger shell, which realizes the overall sealing and waterproofing of the contact surface between the shell and the socket by setting an elastic sealing frame structure on the front end face of the shell where the plug is located. When the shell is plugged into the socket through the plug, the sealing degree of the contact surface between the shell and the socket is improved. However, when this device is in use, it only focuses on the sealing and waterproof protection when the charger is plugged into the socket, and does not take into account the protection of the pins on the charger. Since the pins protrude from the shell of the charger, when the charger is dropped, the pins are easily damaged by impact. Although the partially damaged pins can still work, the risk factor is relatively high and short-circuit is likely to occur. Moreover, if the pins are damaged and deformed, they will not be able to be inserted into the socket. Summary of the Invention

[0003] An embodiment of the present disclosure relates to a flame-retardant charger shell. By sliding a protection member inside the flame-retardant shell, when charging is not required, by sliding the protection member to the use state, even if the protection member does not surround and protect the charging pins, it can prevent the charging pins from being damaged by collision. And when charging, the protection member will slide to a position that coincides with the flame-retardant shell, avoiding the protection member from affecting the charging operation.

[0004] In the first aspect of the present disclosure, a flame-retardant charger shell is provided, which specifically includes: a flame-retardant shell, the inside of the flame-retardant shell has an interlayer; a flame-retardant material is filled in the interlayer inside the flame-retardant shell; a protection member is sleeved and slidably installed on the outer wall of the flame-retardant shell; a snap-on cover is snap-fitted and sealed on the top of the flame-retardant shell; charging pins are fixed on the snap-on cover; when the protection member is in the raised state, the highest end of the protection member is higher than the highest end of the charging pins on the snap-on cover; guiding grooves are opened on the left and right sides of the protection member; two groups of clamping grooves are arranged in a vertically symmetric manner on the side walls of the guiding grooves; guiding seats are fixedly installed on the left and right sides of the flame-retardant shell; the protection member is also slidably sleeved on the guiding seats through the guiding grooves; clamping plates are slidably installed on the front and rear sides inside the guiding seats; the clamping plates are L-shaped structures.

[0005] In at least some embodiments,

[0006] A spring A is jointly embedded between two adjacent card mounting plates; a force receiving plate is fixedly installed at the L-bending part of the card mounting plate; the force receiving plate is of a triangular structure; a release plate is slidably installed on the outer side of the guide seat; the release plate is of a rectangular structure; the position of the release plate is horizontally corresponding to the position of the force receiving plate; a pressing plate of a rectangular structure is fixedly installed at the outer end of the release plate; a spring B is jointly embedded between the inner side of the pressing plate and the outer side of the guide seat.

[0007] In at least some embodiments,

[0008] A shrinkage groove of a square structure is formed at the top of the snap-on cover; a flexible seal of a square structure is adhesively installed inside the shrinkage groove; the top end of the flexible seal protrudes above the top of the snap-on cover; when the protection member is in the raised state, the card mounting plate will snap into the upper card mounting groove; when the protection member is in the lowered state, the card mounting plate will snap into the lower card mounting groove.

[0009] In at least some embodiments,

[0010] After the pressing plate is squeezed, the pressing plate will drive the release plate to move inwards; when the release plate moves inwards, the inner end of the release plate will push against the inclined surface of the force receiving plate; after the inclined surface of the force receiving plate is pushed, it will drive the card mounting plate to move relatively inwards; after the card mounting plate moves inwards, the outer end of the card mounting plate will disengage from the inside of the card mounting groove.

[0011] The present utility model provides a flame-retardant charger housing, which has the following beneficial effects:

[0012] 1. Through the setting of the protection member, the protection member protruding higher than the charging pin surrounds and protects the charging pin. Thus, when the charger falls, the protruding protection member will collide instead of the charging pin, avoiding the situation that the charging pin is damaged by collision and increasing the subsequent use risk coefficient, and also avoiding the situation that the charging pin is deformed due to collision damage and cannot be inserted into the socket for charging.

[0013] 2. When the charging pin is inserted into the socket for charging, the socket will cooperate with the snap-on cover to push and squeeze the flexible seal, so that the flexible seal is pushed and squeezed to seal the gap between the charger and the socket, improving the flame-retardant effect of the charger housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0015] The accompanying drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0016] In the accompanying drawings:

[0017] Figure 1 A schematic diagram showing the use state structure of the protection part of the present application is shown;

[0018] Figure 2 A schematic diagram showing the cancellation state structure of the protection part of the present application is shown;

[0019] Figure 3 A schematic diagram showing a semi-sectional structure of the flame-retardant housing of the present application is shown;

[0020] Figure 4 A schematic diagram showing the Figure 3 magnified structure of part A in the present application;

[0021] Figure 5 A schematic diagram showing the protection part and the card mounting plate structure of the present application is shown;

[0022] Figure 6 A schematic diagram showing the Figure 5 magnified structure of part B in the present application;

[0023] List of reference numerals

[0024] 1. Flame-retardant housing; 2. Protection part; 3. Guide groove; 4. Card mounting groove; 5. Guide seat; 6. Card mounting plate; 7. Spring A; 8. Force-bearing plate; 9. Release plate; 10. Pressing plate; 11. Spring B; 12. Buckling cover; 13. Shrinkage groove; 14. Flexible seal. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0026] Please refer to Figures 1 to 6 :

[0027] Embodiment 1:

[0028] The utility model provides a flame-retardant charger housing, comprising: a flame-retardant housing 1 with an internal interlayer; a flame-retardant material is filled in the internal interlayer of the flame-retardant housing 1; a protective member 2 is slidably sleeved on the outer wall of the flame-retardant housing 1; a fastening cover 12 is fastened and sealed on the top of the flame-retardant housing 1; charging pins are fixed on the fastening cover 12; when the protective member 2 is in the raised state, the highest end of the protective member 2 is higher than the highest end of the charging pins on the fastening cover 12; guiding grooves 3 are formed on the left and right sides of the protective member 2; two sets of clamping grooves 4 are arranged on the side walls of the guiding grooves 3 in a vertically symmetrical manner; guiding seats 5 are fixedly installed on the left and right sides of the flame-retardant housing 1; the protective member 2 is also slidably sleeved on the guiding seats 5 through the guiding grooves 3; clamping plates 6 are slidably installed on the front and rear sides inside the guiding seats 5; the clamping plates 6 are in an L-shaped structure.

[0029] When charging is needed, the two pressing plates 10 are pressed relatively inward by the thumb and index finger manually, so that the pressing plates 10 drive the release plate 9 to move inward. During the moving process, the inner end of the release plate 9 will push against the inclined surface of the force-bearing plate 8, causing the force-bearing plate 8 to drive the clamping plate 6 to move inward under force, so that the outer end of the clamping plate 6 disengages from the inside of the lower clamping groove 4, so that the protective member 2 can resume sliding. Furthermore, when the charging pins are inserted into the socket, the protective member 2 can be contracted to a position coinciding with the flame-retardant housing 1 under the influence of the socket, preventing the protective member 2 from interfering with the charging operation. After insertion, the pressing on the pressing plates 10 is released, so that the clamping plate 6 is restored and inserted into the upper clamping groove 4 under the action of the spring A7, positioning the protective member 2 in the contracted state.

[0030] In the second embodiment, on the basis of the first embodiment, a spring A7 is jointly embedded between two adjacent clamping plates 6; a force-bearing plate 8 is fixedly installed at the L-bending part of the clamping plate 6; the force-bearing plate 8 is in a triangular structure; a release plate 9 is slidably installed outside the guiding seat 5; the release plate 9 is in a rectangular structure; the position of the release plate 9 is horizontally corresponding to the position of the force-bearing plate 8; a rectangular pressing plate 10 is fixedly installed at the outer end of the release plate 9; a spring B11 is jointly embedded between the inner side of the pressing plate 10 and the outer side of the guiding seat 5.

[0031] When the charging pins are inserted into the socket, the fastening cover 12 will also jointly press the flexible seal 14 with a mouth-shaped structure with the socket plate, so that the flexible seal 14 will be deformed under the influence of the extrusion, and the gap between the charger and the socket will be sealed and protected in a mouth-shaped manner.

[0032] Embodiment 3. On the basis of Embodiment 2, a shrinkage groove 13 with a mouth-shaped structure is opened at the top of the snap-on cover 12; a flexible seal 14 with a mouth-shaped structure is adhesively installed inside the shrinkage groove 13; the top end of the flexible seal 14 protrudes from the top of the snap-on cover 12; when the protection member 2 is in the raised state, the clamping plate 6 will snap into the inner part of the upper clamping groove 4; when the protection member 2 is in the lowered state, the clamping plate 6 will snap into the inner part of the lower clamping groove 4; after the pressing plate 10 is squeezed, the pressing plate 10 will drive the release plate 9 to move inward; when the release plate 9 moves inward, the inner end of the release plate 9 will push against the inclined surface of the force-bearing plate 8; after the inclined surface of the force-bearing plate 8 is pushed, it will drive the clamping plate 6 to move relatively inward; after the clamping plate 6 moves inward, the outer end of the clamping plate 6 will disengage from the inner part of the clamping groove 4.

[0033] When pulling out the charger to stop charging, by continuously squeezing the pressing plate 10, the force applied indirectly causes the clamping plate 6 to slide out of the inner part of the upper clamping groove 4, enabling the protection member 2 to resume sliding so that it can slide again to a position protruding from the charging pin. Then, release the pressing plate 10, causing the clamping plate 6 to snap into the lower clamping groove 4 again, keeping the protection member 2 in the protected state.

[0034] Working principle:

[0035] During charging, manually press the two pressing plates 10 relatively inward with the thumb and index finger, causing the pressing plate 10 to drive the release plate 9 to move inward. During the movement, the inner end of the release plate 9 will push against the inclined surface of the force-bearing plate 8, causing the force-bearing plate 8 to drive the clamping plate 6 to move inward, and the outer end of the clamping plate 6 to disengage from the inner part of the lower clamping groove 4, so that the protection member 2 can resume sliding. Then, when inserting the charging pin into the socket, the protection member 2 can be contracted under the influence of the socket to a position coinciding with the flame-retardant housing 1, preventing the protection member 2 from interfering with the charging operation. After insertion, release the pressing on the pressing plate 10, causing the clamping plate 6 to be restored and inserted into the inner part of the upper clamping groove 4 under the action of the spring A7, positioning the protection member 2 in the contracted state. At the same time, the snap-on cover 12 and the socket will jointly squeeze the flexible seal 14 with a mouth-shaped structure, causing the flexible seal 14 to deform under the influence of the squeeze, sealing the gap between the charger and the socket in a mouth-shaped manner for protection. After charging is completed, by continuously squeezing the pressing plate 10, the force applied indirectly causes the clamping plate 6 to slide out of the inner part of the upper clamping groove 4, enabling the protection member 2 to resume sliding so that it can slide again to a position protruding from the charging pin. Then, release the pressing plate 10, causing the clamping plate 6 to snap into the lower clamping groove 4 again, keeping the protection member 2 in the protected state.

[0036] In this article, the following points need to be noted:

[0037] 1. The accompanying drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0038] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A flame retardant charger housing, comprising: A flame retardant shell (1), wherein the interior of the flame retardant shell (1) has an interlayer; the internal interlayer of the flame retardant shell (1) is filled with flame retardant material; characterized in that a protective member (2) is slidably mounted on the outer wall of the flame retardant shell (1); a snap-on cover (12) is snap-on and sealed at the top of the flame retardant shell (1); a charging pin is fixed on the snap-on cover (12); when the protective member (2) is in an ascending state, the highest end of the protective member (2) is higher than the highest end of the charging pin on the snap-on cover (12); guide grooves (3) are provided on the left and right sides of the protective member (2); two groups of clamping grooves (4) are arranged symmetrically in an upper and lower manner on the side walls of the guide groove (3); guide seats (5) are fixedly mounted on the left and right sides of the flame retardant shell (1); the protective member (2) is also slidably mounted on the guide seat (5) through the guide groove (3); a clamping plate (6) is slidably mounted on the front and rear sides of the guide seat (5); the clamping plate (6) is an L-shaped structure.

2. A flame retardant charger housing according to claim 1, characterized in that: A spring A (7) is commonly embedded between two adjacent clamping plates (6); a force-bearing plate (8) is fixedly installed at the L-bending portion of the clamping plate (6); the force-bearing plate (8) is a triangular structure; a release plate (9) is slidably installed on the outer side of the guide seat (5); the release plate (9) is a rectangular structure.

3. A flame retardant charger housing according to claim 2, characterized in that: The position of the release plate (9) is horizontally corresponding to the position of the force-bearing plate (8); a rectangular pressing plate (10) is fixedly mounted on the outer end of the release plate (9); and a spring B (11) is embedded between the inner side of the pressing plate (10) and the outer side of the guide seat (5).

4. A flame retardant charger housing according to claim 3, characterized in that: A shrinkage groove (13) with a U-shaped structure is provided on the top of the snap-on cover (12); a flexible sealing member (14) with a U-shaped structure is glued and installed inside the shrinkage groove (13); and the top end of the flexible sealing member (14) protrudes from the top of the snap-on cover (12).

5. A flame retardant charger housing according to claim 4, characterized in that: When the protective member (2) is in an ascending state, the mounting plate (6) will be engaged with the interior of the mounting slot (4) located above; when the protective member (2) is in a descending state, the mounting plate (6) will be engaged with the interior of the mounting slot (4) located below.

6. The flame retardant charger housing according to claim 5, characterized in that: After the pressing plate (10) is squeezed, the pressing plate (10) will move inward with the releasing plate (9); when the releasing plate (9) moves inward, the inner end of the releasing plate (9) will push against the inclined surface of the force-bearing plate (8).

7. A flame retardant charger housing according to claim 6, characterized in that: After the inclined surface of the force-bearing plate (8) is pushed, it will move the clamping plate (6) relatively inward; after the clamping plate (6) moves inward, the outer end of the clamping plate (6) will be separated from the inside of the clamping slot (4).

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