Screw-free clamping assembly type lithium battery charger shell

Abstract

The utility model relates to the field of lithium battery chargers, and discloses a screw-free clamping assembly type lithium battery charger shell, which comprises an upper cover and a lower cover, and clamping grooves are respectively arranged at the lower ends of the centers of the front and rear side walls of the upper cover and the upper ends of the centers of the front and rear side walls of the lower cover. Connecting structures are arranged in the front side wall and the rear side wall of the lower cover respectively, lower grooves are formed in the positions, close to the centers of the upper end faces of the two sides, of the lower cover respectively, protective structures are arranged in the positions, close to the edges, of the lower end face of the upper cover respectively, and a connecting frame is fixedly connected to the position, close to the edges, of the lower end face of the upper cover. And connecting blocks are fixedly connected to the lower end surface of the upper cover on the two sides of the connecting frame respectively. According to the utility model, the connection structure is matched with the protection structure, so that not only can quick assembly and disassembly be realized, but also good protection performance can be realized, and meanwhile, the sealing performance of the connection part is improved through the matching of the connection block and the lower groove.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery chargers, in particular to a screwless clamping assembly type lithium battery charger shell. Background Art

[0002] A lithium battery charger is a device used to charge lithium-ion batteries. It can provide the corresponding current and voltage according to the voltage level and capacity of the battery to fully charge and ensure safety. Different types of lithium battery chargers can be selected according to different uses and needs, such as home, car, portable, multi-functional, etc. At the same time, lithium battery chargers should also be used and maintained reasonably in combination with the instructions and precautions to extend the service life and avoid safety accidents.

[0003] Existing lithium battery charger shells are usually assembled in two connection methods. One is screw fixing, which has good fastening properties, but is difficult to disassemble during assembly and maintenance, and has low efficiency. The other is ordinary snap-on connection, which has the effect of quick assembly, but is difficult to disassemble during inspection and maintenance. At the same time, if the operation is not easy, it is easy to cause the internal snaps to break, resulting in the shell being unable to be assembled normally, affecting normal use. Therefore, technicians in this field provide a screwless snap-on assembly type lithium battery charger shell to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and the screwless snap-on assembled lithium battery charger shell proposed can achieve quick installation and disassembly and good protection by setting a connection structure and a protective structure to prevent the shell from being opened due to accidental contact during use. At the same time, the sealing of the connection is improved by the cooperation between the connection block and the lower groove to prevent external water from entering the interior of the shell.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screwless snap-fit ​​assembly type lithium battery charger housing, comprising an upper cover and a lower cover, wherein snap-fit ​​grooves are respectively arranged at the lower end of the center of the front and rear side walls of the upper cover and at the upper end of the center of the front and rear side walls of the lower cover, wherein the interior of the front and rear side walls of the lower cover are respectively provided with connection structures, wherein the center of the upper end surface of the lower cover on both sides is respectively provided with lower grooves, wherein the interior of the snap-fit ​​grooves on the front and rear side walls of the lower cover are respectively provided with protection structures, wherein the lower end surface of the upper cover is fixedly connected to a connection frame at the edge, and the lower end surfaces of the upper cover on both sides of the connection frame are respectively fixedly connected to connection blocks;

[0006] Through the above technical solution, by setting up the connection structure and the protective structure, it is possible to achieve quick installation and disassembly, and also to achieve good protection to prevent the shell from being opened due to accidental contact during use. At the same time, through the cooperation of the connection block and the lower groove, the sealing of the connection is improved to prevent external water from entering the interior of the shell.

[0007] Further, the connection structure includes a placement hole, the placement hole is opened on the upper end surface of the lower cover, a movable hole is provided on the inner side wall of the lower cover near the placement hole, a spring is provided inside the movable hole, one end of the spring is fixedly connected to a clamping block, the other end of the spring is fixedly connected to an inner side wall of the movable hole, a connecting rope is fixedly connected to the center of one side wall of the clamping block, the other end of the connecting rope passes through the spring and an inner side wall of the movable hole and passes to the inside of the placement hole, and the end is fixedly connected to the side wall of the protective structure;

[0008] Through the above technical solution, when in use, the card block is matched with the card hole on the side wall of the connecting frame to complete quick assembly. When disassembling, the protective structure is rotated so that the connecting rope pulls the card block out from the inside of the card hole, thereby achieving the purpose of quick disassembly with higher efficiency.

[0009] Furthermore, the protective structure includes a connecting joint, a connecting wire is fixedly connected to the center of one side wall of the connecting joint, a disc is fixedly connected to the other end of the connecting joint, connecting columns are fixedly connected to the center of one side wall of the disc near the two side edges, and connecting holes are respectively provided on an inner side wall of the lower cover near the two connecting columns;

[0010] Through the above technical solution, the two connecting columns are connected inside the two connecting holes during use, thereby preventing accidental collision with the protective structure and achieving higher safety.

[0011] Furthermore, a heat dissipation fan is arranged inside the lower cover, and heat dissipation holes are arranged at the center of one side wall of the upper cover and the lower cover near the edge of the front side wall, and the positions of the heat dissipation fan and the heat dissipation holes correspond to each other;

[0012] Through the above technical solution, good heat dissipation is achieved to prevent internal overheating during operation.

[0013] Furthermore, the two connecting blocks and the two lower grooves are adapted to each other, and the material of the two connecting blocks is rubber;

[0014] Through the above technical solution, the overall sealing performance is improved, preventing external water from entering the interior of the shell.

[0015] Furthermore, the two connecting posts and the two connecting holes are adapted to each other, and the shapes of the two connecting posts and the two connecting holes are both rectangular;

[0016] Through the above technical solution, the protective structure can be better restricted to prevent accidental collision.

[0017] Furthermore, two clamping holes adapted to the clamping blocks are respectively provided on the front and rear side walls of the connecting frame;

[0018] The above technical solution makes it easy to assemble.

[0019] Furthermore, the upper cover and the lower cover are both made of polycarbonate;

[0020] Through the above technical scheme, the advantages of high mechanical strength, good impact resistance, good formability, good construction performance and low cost are achieved.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a connection structure, when in use, the card block is matched with the card hole on the side wall of the connection frame, so as to complete the rapid assembly. When disassembling, the protective structure is rotated so that the connecting rope pulls the card block out from the inside of the card hole, thereby achieving the purpose of rapid disassembly with higher efficiency.

[0023] 2. In the utility model, by providing a protective structure, the two connecting posts are connected in cooperation with the inside of the two connecting holes during use, thereby preventing accidental collision with the protective structure, and providing higher safety.

[0024] 3. In the utility model, the two connecting blocks and the two lower grooves are adapted to each other, thereby improving the overall sealing performance and preventing external water from entering the interior of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an isometric view of the screwless snap-on assembly type lithium battery charger housing proposed by the utility model;

[0026] Figure 2 This is an isometric view of the lower cover of the screwless snap-fit ​​assembly type lithium battery charger housing proposed by the utility model;

[0027] Figure 3 It is a partial cross-sectional view of the connection structure in the housing of the screwless clamping assembly type lithium battery charger proposed by the utility model;

[0028] Figure 4 This is a front view of the upper cover in the housing of the screwless snap-fit ​​assembly type lithium battery charger proposed by the utility model;

[0029] Figure 5 This is an isometric view of the protective structure in the screwless snap-in assembly type lithium battery charger housing proposed by the utility model.

[0030] Legend:

[0031] 1. Upper cover; 2. Lower cover; 3. Connecting wire; 4. Protective structure; 401. Connecting joint; 402. Disc; 403. Connecting column; 404. Connecting hole; 5. Heat dissipation hole; 6. Connecting structure; 601. Placement hole; 602. Connecting rope; 603. Block; 604. Movable hole; 605. Spring; 7. Lower groove; 8. Card slot; 9. Heat dissipation fan; 10. Connecting frame; 11. Connecting block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-5 The utility model provides an embodiment: a screwless snap-in assembled lithium battery charger shell, comprising an upper cover 1 and a lower cover 2, a snap-in slot 8 is respectively provided at the lower end of the center of the front and rear side walls of the upper cover 1 and the upper end of the center of the front and rear side walls of the lower cover 2, a connecting structure 6 is respectively provided inside the front and rear side walls of the lower cover 2, a lower groove 7 is respectively provided at the center of the upper end surface of the lower cover 2 on both sides, a protective structure 4 is respectively provided inside the snap-in slot 8 on the front and rear side walls of the lower cover 2, a connecting frame 10 is fixedly connected to the lower end surface of the upper cover 1 at the edge, and connecting blocks 11 are respectively fixedly connected to the lower end surface of the upper cover 1 on both sides of the connecting frame 10.

[0034] The connecting structure 6 includes a placement hole 601, which is opened on the upper end surface of the lower cover 2. A movable hole 604 is arranged on the inner wall of the lower cover 2 near the placement hole 601. A spring 605 is arranged inside the movable hole 604. One end of the spring 605 is fixedly connected to a clamping block 603, and the other end of the spring 605 is fixedly connected to an inner wall of the movable hole 604. A connecting rope 602 is fixedly connected to the center of one side wall of the clamping block 603. The other end of the connecting rope 602 passes through the spring 605 and an inner wall of the movable hole 604 and passes to the inside of the placement hole 601, and the end is fixedly connected to the side wall of the protective structure 4. When in use, the clamping block 603 is matched with the clamping hole on the side wall of the connecting frame 10 to complete rapid assembly. When disassembling, the protective structure 4 is rotated so that the connecting rope 602 pulls the clamping block 603 out of the inside of the clamping hole, thereby completing the purpose of rapid disassembly with higher efficiency.

[0035] The protective structure 4 includes a connecting joint 401, a connecting line 3 is fixedly connected to the center of one side wall of the connecting joint 401, a disc 402 is fixedly connected to the other end of the connecting joint 401, connecting columns 403 are fixedly connected to the center of one side wall of the disc 402 near the two side edges, and connecting holes 404 are respectively provided on an inner side wall of the lower cover 2 close to the two connecting columns 403. The two connecting columns 403 are matched and connected inside the two connecting holes 404, so as to prevent accidental contact with the protective structure 4, and the safety is higher. When in use, the two connecting columns 403 are pushed out from the inside of the two connecting holes 404 by pushing the protective structure 4 inward, so as to achieve normal rotation.

[0036] A heat dissipation fan 9 is arranged inside the lower cover 2, and heat dissipation holes 5 are respectively arranged at the center of one side wall of the upper cover 1 and the lower cover 2 near the front side wall edge, and the positions of the heat dissipation fan 9 and the heat dissipation holes 5 correspond to each other. The two connecting blocks 11 are adapted to each other with the two lower grooves 7, and the material of the two connecting blocks 11 is rubber, which improves the overall sealing and prevents external water from entering the interior of the shell. The two connecting columns 403 and the two connecting holes 404 are adapted to each other, and the shapes of the two connecting columns 403 and the two connecting holes 404 are both rectangular, which can better limit the protective structure 4 and prevent accidental collision. Two card holes that are adapted to the card blocks 603 are respectively arranged on the front and rear side walls of the connecting frame 10, which are convenient for assembly. The material of the upper cover 1 and the lower cover 2 is polycarbonate, which has the advantages of high mechanical strength, good impact resistance, good formability, good construction performance and low cost.

[0037] Working principle: The utility model is a screwless snap-in assembly type lithium battery charger shell. When in use, the card block 603 is matched with the card hole on the side wall of the connecting frame 10 to complete quick assembly. When disassembling, the protective structure 4 is rotated so that the connecting rope 602 pulls the card block 603 out from the inside of the card hole, thereby achieving the purpose of quick disassembly with higher efficiency. The two connecting columns 403 are matched and connected inside the two connecting holes 404, so as to prevent accidental contact with the protective structure 4, and the safety is higher. When in use, the two connecting columns 403 are pushed out from the inside of the two connecting holes 404 by pushing the protective structure 4 inward, so as to achieve normal rotation, thereby realizing the separation between the upper cover 1 and the lower cover 2, and the two connecting blocks 11 are adapted to each other with the two lower grooves 7, and the material of the two connecting blocks 11 is rubber, which improves the overall sealing and prevents external water from entering the interior of the shell.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screwless snap-on assembly type lithium battery charger housing, comprising an upper cover (1) and a lower cover (2), characterized in that: A card slot (8) is provided at the center of the front and rear side walls of the upper cover (1) and at the center of the front and rear side walls of the lower cover (2), respectively; a connecting structure (6) is provided inside the front and rear side walls of the lower cover (2), a lower groove (7) is provided at the center of the upper end surface of the lower cover (2), and a protective structure (4) is provided inside the card slot (8) on the front and rear side walls of the lower cover (2), a connecting frame (10) is fixedly connected to the edge of the lower end surface of the upper cover (1), and connecting blocks (11) are fixedly connected to the lower end surfaces of the upper cover (1) on both sides of the connecting frame (10), respectively; the connecting structure (6) includes a placement hole (601), and the placement hole (602) is provided at the center of the upper end surface of the lower cover (2). 01) is opened on the upper end surface of the lower cover (2), and a movable hole (604) is arranged on the inner wall of the lower cover (2) close to the placement hole (601). A spring (605) is arranged inside the movable hole (604), and one end of the spring (605) is fixedly connected to a clamping block (603), and the other end of the spring (605) is fixedly connected to an inner wall of the movable hole (604). A connecting rope (602) is fixedly connected at the center of one side wall of the clamping block (603), and the other end of the connecting rope (602) passes through the spring (605) and an inner wall of the movable hole (604) and passes to the inside of the placement hole (601), and the end is fixedly connected to the side wall of the protective structure (4).

2. The screwless snap-on assembly type lithium battery charger housing according to claim 1, characterized in that: The protective structure (4) comprises a connecting joint (401), a connecting line (3) is fixedly connected to the center of one side wall of the connecting joint (401), a disc (402) is fixedly connected to the other end of the connecting joint (401), connecting columns (403) are respectively fixedly connected to the center of one side wall of the disc (402) near the two side edges, and connecting holes (404) are respectively provided on an inner side wall of the lower cover (2) on the side close to the two connecting columns (403).

3. The screwless snap-on assembly type lithium battery charger housing according to claim 1, characterized in that: A heat dissipation fan (9) is arranged inside the lower cover (2), and heat dissipation holes (5) are respectively arranged at the center of one side wall of the upper cover (1) and the lower cover (2) and at the edge of the front side wall, and the positions of the heat dissipation fan (9) and the heat dissipation holes (5) correspond to each other.

4. The screwless snap-on assembly type lithium battery charger housing according to claim 1, characterized in that: The two connection blocks (11) and the two lower grooves (7) are adapted to each other, and the two connection blocks (11) are both made of rubber.

5. The screwless snap-on assembly type lithium battery charger housing according to claim 2, characterized in that: The two connecting posts (403) and the two connecting holes (404) are adapted to each other, and the shapes of the two connecting posts (403) and the two connecting holes (404) are both rectangular.

6. The screwless snap-on assembly type lithium battery charger housing according to claim 1, characterized in that: Two clamping holes that are adapted to the clamping blocks (603) are respectively arranged on the front and rear side walls of the connection frame (10).

7. The screwless snap-on assembly type lithium battery charger housing according to claim 1, characterized in that: The upper cover (1) and the lower cover (2) are both made of polycarbonate.

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