Surge protection device

Abstract

A surge protection device disclosed by the present invention comprises a protector module and a base, the base is provided with a mounting groove for the protector module to be inserted in a matching manner, two sides of the mounting groove are provided with slots, clamping blocks are arranged in the slots, the protector module is rotatably connected with a clamping jaw, the clamping jaw is in transmission connection with a push plate, and the push plate is in transmission connection with the clamping jaw. The push plate is movably arranged on the side portion of the protector module, the clamping jaw is further provided with a clamping head, after the protector module is inserted into the installation groove, the clamping jaw enters the insertion groove, and the push plate vertically moves to drive the clamping jaw to rotate and drive the clamping head to be clamped with the clamping block so that the protector module and the base can be fixedly connected. The device has the beneficial effects that the protector module and the base are disassembled or fixed by pushing the push plate conveniently, meanwhile, after multiple times of disassembly, the fixed connection performance between the protector module and the base does not lose efficacy and is not reduced, and the device is reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of electric protection devices, and in particular relates to a surge protector. Background Art

[0002] Surge, also known as surge, refers to a short-term overvoltage or peak current that instantly exceeds the normal working voltage. It is usually caused by lightning strikes, equipment switching operations, power system failures, etc. In order to avoid damage to electrical equipment caused by surges or even safety accidents, it is necessary to connect a surge protector to the power system.

[0003] The surge protector includes a protector module and a base. A mounting slot is provided on the base. After the protector module is inserted into the mounting slot, it is electrically connected to the base. Then the base is connected to the power system through the wiring terminals thereon. The protector module can eliminate the surges generated by the power system to protect the electrical equipment in the power system.

[0004] In traditional surge protectors, there is no other fixing structure between the protector module and the base. The protector module can be unplugged by directly pulling it. When the surge protector is impacted by external force, the protector module is prone to loosening or even detaching from the base, affecting the normal operation of the surge protector. To overcome this problem, surge protectors with a snap-on structure between the protector module and the base have appeared.

[0005] However, during actual use, technicians found that using clips to fix the protector module and the base would have the following defects: (1) The clips can fix the protector module to the base relatively stably, but correspondingly, it will increase the difficulty of removing the protector module from the base, making it inconvenient to repair and replace the protector module; (2) After multiple plugging and unplugging, the clip structure will produce irreversible deformation, thereby affecting the stability of the fixed connection between the protector module and the base. Summary of the invention

[0006] In the existing surge protector, the protector module and the base are fixedly connected by a buckle, which makes it difficult to remove the protector module from the base, and the buckle structure is easily deformed and fails after multiple plugging and unplugging, affecting the fixing effect of the protector module. In view of the above problems, the following invention is proposed: A surge protector comprises a protector module and a base, wherein the base is provided with a mounting groove for the protector module to be inserted into, slots are provided on both sides of the mounting groove, and clamping blocks are provided in the slots. A clamping claw is rotatably connected to the protector module, and the clamping claw is transmission-connected to a push plate, which is movably arranged on the side of the protector module. A clamping head is also provided on the clamping claw. After the protector module is inserted into the mounting groove, the clamping claw enters into the slot. After the push plate is pushed to move vertically downward, the clamping claw rotates outward and engages with the clamping block to fix the protector module. After the push plate is pushed to move vertically upward, the clamping claw rotates inward and disengages from the clamping block to release the fixed connection between the protector module and the push plate.

[0007] Furthermore, a push head is provided at the bottom of the push plate, horizontal push arms are provided on both sides of the push head, and the clamping claw is provided with a first push block located above the push arm and a second push block located below the push arm. After the push plate moves vertically, it contacts the first push block or the second push block to drive the clamping claw to rotate, and the clamping claw engages with or releases the engagement with the clamping block after rotation.

[0008] Furthermore, the first push block and the second push block are both provided with guide inclined surfaces facing the push arm, and after the push plate moves vertically, the push arm thereof contacts the guide inclined surfaces to drive the claw to rotate.

[0009] Furthermore, the protector module is provided with a guide column and a connecting column located below the push plate, and the push head is provided with a guide groove for the guide column to be movably inserted. After the push plate moves vertically, the guide column moves vertically in the guide groove, and the claw is provided with a connecting hole for the connecting column to be inserted, so that the claw can be rotatably connected to the protector module.

[0010] Furthermore, a cover plate with a connecting cover arranged on the outside of the guide column and the connecting column is fixed on the protector module, and an opening for the clamp to extend out is provided at the bottom of the cover plate. After the protector module is inserted into the installation groove, the cover plate is inserted into the slot in cooperation.

[0011] Furthermore, the protector module is provided with a slide groove and fixed grooves on both sides of the slide groove, the push plate is movably arranged in the slide groove, and the cover plate is provided with a fixing buckle engaged with the fixed groove to fix the cover plate on the protector module.

[0012] Furthermore, it also includes a first baffle and a second baffle, the connecting column and the guide column are provided with a socket, the first baffle and the second baffle are provided with a plug column that fits and is inserted into the socket, the first baffle blocks the outside of the claw, and the second baffle blocks the outside of the push head.

[0013] Furthermore, a first stopper and a second stopper are provided on the inner side of the cover plate, the first stopper is fitted with the connecting column to block the outside of the claw, and the second stopper is fitted with the guide column to block the outside of the push head to prevent the claw and the push head from moving excessively outward.

[0014] The present invention proposes a surge protector, comprising a protector module and a base, which has the beneficial effect that push plates are provided on both sides of the protector module, and after the push plates move vertically, they drive claws also located on both sides of the protector module to rotate, and after the protector module is inserted and installed on the base, the claws can rotate to engage with or release the engagement with the card block, so as to fix or release the fixed connection between the protector module and the base, which is convenient for operators to quickly install and remove the protector module, and in addition, even if the protector module is installed and removed multiple times, the engaging effect between the claws and the card block will not be reduced, so that the stability of the fixed connection between the protector module and the base will not be reduced, and it is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the surge protector in the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the base in the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the protector module in the present invention; Figure 4 It is a schematic diagram of the internal structure of the protector module in the present invention; Figure 5 It is a partial structural schematic diagram of the protector module in the present invention; Figure 6 It is a schematic diagram of the side cross-section structure of the surge protector in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the push plate in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping claw in the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the cover plate in the present invention.

[0016] The corresponding relationship between the illustrations and component names in the figure is as follows: 1. Protector module; 2. Base; 3. Push plate; 4. Clamping claw; 5. Cover plate; 11. Slide groove; 12. Fixing groove; 13. Connecting column; 14. Guide column; 21. Mounting groove; 22. Slot; 23. Block; 31. Push head; 32. Push arm; 33. Guide groove; 41. Clamp; 42. Connecting hole; 43. First push block; 44. Second push block; 45. Guide slope; 46. Limit block; 51. Fixing buckle; 52. Opening; 53. First stop block; 54. Second stop block. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0018] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0019] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0020] In addition to being used to indicate a position or location relationship, some of the above terms may also be used to indicate other meanings. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1-Figure 5 As shown, it is a preferred embodiment of the present invention, a surge protector, including a protector module 1 and a base 2, the base 2 is provided with a mounting groove 21 and slots 22 located on both sides of the mounting groove 21, and a clamping block 23 is provided in the slot 22, and a slide groove 11 is vertically provided on each side of the protector module 1, and a push plate 3 is movably provided in the slide groove 11, and the push plate 3 can move vertically in the slide groove 11, and a claw 4 is provided below the push plate 3 and is transmission-connected thereto, and a clamping head 41 is provided at the bottom of the claw 4. After the protector module 1 is inserted into the mounting groove 21, the claw 4 also enters the slot 22, and after pushing the push plate 3 to move downward, the push plate 3 drives the claw 4 to rotate, and after the claw 4 rotates, it drives the clamping head 41 to engage with the clamping block 23 to fix the connection between the protector module 1 and the base 2.

[0022] The following further describes in detail how to achieve the transmission connection between the push plate 3 and the claw 4. Figure 5 As shown, a guide column 14 and a connecting column 13 are provided on both sides of the protector module 1 below the slide slot 11. Figure 7As shown, a push head 31 is provided at the bottom of the push plate 3, and an oblong guide groove 33 is provided on the push head 31. The guide column 14 is movably inserted into the guide groove 33, and horizontally extending push arms 32 are also provided on both sides of the push head 31; a claw 4 is provided on each side of the push head 31, and a connecting hole 42 for the connecting column 13 to be inserted is provided on the claw 4, so that the claw 4 can be rotatably connected to the protector module 1, as shown in FIG. Figure 8 As shown, a first push block 43 located above the push arm 32 and a second push block 44 located below the push arm 32 are further provided on the side of the claw 4 , and a guiding inclined surface 45 facing the push arm 32 is provided on the first push block 43 and the second push block 44 .

[0023] After the push plate 3 moves vertically upward or downward, the guide column 14 moves vertically in the guide groove 33, and the push head 31 drives the push arm 32 to move vertically downward or upward. When the push arm 32 moves vertically upward, it drives the two claws 4 to rotate until the two clamping heads 41 are in a contracted state by contacting the guide inclined surface 45 of the first push block 43. When the push arm 32 moves vertically downward, it drives the two claws 4 to rotate until the two clamping heads 41 are in an open state by contacting the guide inclined surface 45 of the second push block 44.

[0024] Before installing the protector module 1, it is necessary to push the push plate 3 upward to allow the clamping heads 41 of the two claws 4 on each side of the protector module 1 to retract inward, and the protector module 1 is inserted downward into the installation slot 21, and the claws 4 enter the slot 22. At this time, the clamping heads 41 are located obliquely below the clamping block 23, and the push plate 3 is pushed downward, and the clamping heads 41 of the two claws 4 are opened outward. Figure 6 As shown, the opened clamping head 41 is engaged with the bottom of the clamping block 23 to realize the fixed connection between the protector module 1 and the base 2. When the protector module 1 is pulled, the clamping head 41 is only resisted downward by the clamping block 23, and the claw 4 will not rotate. Only by pushing the push plate 3 upward and allowing the clamping head 41 of the claw 4 to shrink inward and rotate away from the bottom of the clamping block 23 can the fixed connection between the protector module 1 and the base 2 be released.

[0025] It is particularly noted that when the protector module 1 is pulled upward, the block 23 is only subjected to the vertical downward pressure of the clamping head 41, and the two clamping heads 41 will not rotate inward and shrink, nor will the push plate 3 move upward, thereby ensuring the stability of the fixed connection between the protector module 1 and the base 2. In addition, when the push plate 3 is impacted by external force, the friction between it and the slide groove 11 can maintain its stability to a certain extent, and the external force impact must be in the direction of movement of the push plate 3. In actual use, once the base 2 is fixed and installed, the push plate 3 is usually not affected by the external force.

[0026] like Figure 3As shown, a cover plate 5 is fixedly installed on each side of the protector module 1. The cover plate 5 is covered on the outside of the guide column 14 and the connecting column 13. The bottom of the push plate 3 is located on the inside of the cover plate 5. Two openings 52 are provided at the bottom of the cover plate 5. The clamping head 41 of the clamping claw 4 extends out from the opening 52. A limit block 46 is also provided on the clamping head 41. During the pushing process of the push plate 3, the limit block 46 is blocked on the outside of the cover plate 5 to prevent the clamping head 41 from completely entering the cover plate 5. After the protector module 1 is inserted into the installation slot 21, the cover plate 5 is inserted into the slot 22 in cooperation, and the top surface of the cover plate 5 is exactly flush with the top surface of the base 2. Furthermore, the protector module 1 is also provided with fixed slots 12 located on both sides of the slide slot 11, as shown in FIG. Fig. 9 As shown, the cover plate 5 is provided with a fixing buckle 51 engaged with the fixing groove 12 so as to realize the fixed installation of the cover plate 5 on the side of the protector module 1 .

[0027] To limit the claw 4 from moving outwards away from the connecting column 13 or the push head 31 from moving outwards away from the guide column 14, as shown in FIG. Fig. 9 As shown, a first stopper 53 and a second stopper 54 are provided on the inner side of the cover plate 5. After the cover plate 5 is installed on the protector module 1, the first stopper 53 is fitted with the connecting column 13 to block the outer side of the claw 4 to limit the outward movement of the claw 4. The second stopper 54 is fitted with the guide column 14 to block the outer side of the push head 31 to limit the outward movement of the push head 31.

[0028] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A surge protector, comprising a protector module (1) and a base (2), wherein the base (2) is provided with a mounting slot (21) for the protector module (1) to be inserted into, characterized in that: Slots (22) are provided on both sides of the installation slot (21), and blocks (23) are provided in the slots (22). A claw (4) is rotatably connected to the protector module (1), and the claw (4) is transmission-connected to a push plate (3). The push plate (3) is movably arranged on the side of the protector module (1), and a clamping head (41) is also provided on the claw (4). After the protector module (1) is inserted into the installation slot (21), the claw (4) enters into the slot (22), and the push plate (3) moves vertically to drive the claw (4) to rotate, and drives the clamping head (41) to engage with the block (23), so as to fix the protector module (1) and the base (2).

2. The surge protector according to claim 1, characterized in that: A push head (31) is provided at the bottom of the push plate (3), and horizontal push arms (32) are provided on both sides of the push head (31). A first push block (43) located above the push arm (32) and a second push block (44) located below the push arm (32) are provided on the clamping claw (4). After the push plate (3) moves vertically, it contacts the first push block (43) or the second push block (44) to drive the clamping claw (4) to rotate.

3. The surge protector according to claim 2, characterized in that: The first push block (43) and the second push block (44) are both provided with a guiding inclined surface (45) facing the push arm (32); the push arm (32) contacts the guiding inclined surface (45) to drive the claw (4) to rotate.

4. The surge protector according to claim 3, characterized in that: The protector module (1) is provided with a guide column (14) and a connecting column (13) located below the push plate (3); the push head (31) is provided with a guide groove (33) for the guide column (14) to be movably inserted; after the push plate (3) moves vertically, the guide column (14) moves vertically in the guide groove (33); the claw (4) is provided with a connecting hole (42) for the connecting column (13) to be inserted, so that the claw (4) can be rotatably connected to the protector module (1).

5. The surge protector according to claim 4, characterized in that: A cover plate (5) is also fixedly connected to the protector module (1) and is arranged outside the guide column (14) and the connecting column (13). An opening (52) is provided at the bottom of the cover plate (5) for the clamping head (41) to extend out. After the protector module (1) is inserted into the installation slot (21), the cover plate (5) is inserted into the slot (22) in a coordinated manner.

6. The surge protector according to claim 5, characterized in that: The protector module (1) is further provided with a slide groove (11) and fixed grooves (12) located on both sides of the slide groove (11); the push plate (3) is movably arranged in the slide groove (11); and the cover plate (5) is provided with a fixing buckle (51) engaged with the fixing groove (12).

7. The surge protector according to claim 5, characterized in that: A first stopper (53) and a second stopper (54) are provided on the inner side of the cover plate (5); the first stopper (53) is fitted with the connecting column (13) to block the outside of the claw (4); and the second stopper (54) is fitted with the guide column (14) to block the outside of the push head (31).

8. The surge protector according to claim 5, characterized in that: A limit block (46) is also provided at the end of the clamping head (41), and the limit block (46) is blocked on the outside of the cover plate (5) to prevent the clamping head (41) from completely entering the inside of the cover plate (5).

Images