Mounting structure of electric protection device and surge protection device

Abstract

The utility model relates to the technical field of surge protectors, in particular to a mounting structure of an electric protection device and a surge protector. The mounting structure comprises a shell and a first electrode plate, the shell is used for accommodating an electric protection device, the shell is provided with a first surface, and the first surface is provided with a first opening communicated with the interior of the shell; the first electrode plate comprises a first body part and a first connecting part, the first body part is arranged in the shell to be connected with one of a positive electrode and a negative electrode of the electric protection device, one end of the first connecting part is connected with the first body part, and the other end extends out of the first opening to be connected with an external circuit; the end, extending out of the first opening, of the first connecting part is provided with a protrusion, and the protrusion is hooked on the first surface to fix the electric protection device. The electric protection device and the shell are relatively fixed by matching the shell with the first electrode plate, and the length of the first electrode plate extending out of the shell is ensured to be constant, so that the universality of the shell and the electric protection device is improved, and the electric connection stability and the installation efficiency are both considered.

Description

Technical Field

[0001] The present application relates to the technical field of surge protectors, and in particular to an installation structure of an electrical protection device and a surge protector. Background Art

[0002] Lightning protection is a key aspect of electrical safety, and surge protectors are increasingly used due to their lightning protection capabilities. Depending on the application scenario, the electrical protection device installed in the surge protector varies. For example, the electrical protection device can be a varistor or a gas discharge tube. Furthermore, the same electrical protection device can have different specifications depending on the needs. Therefore, the size of the electrical protection devices in the same series of surge protectors often varies. Furthermore, when surge protectors are installed in different devices, even if the type and specifications of the electrical protection device are the same, the size of the surge protector housing may vary due to installation space considerations.

[0003] Therefore, it's often difficult to precisely match the electrical protection device with the housing. To ensure the electrode pads on the device extend beyond the housing and connect effectively to the external circuit, spacers of varying thicknesses are typically placed between the device and the housing to maintain a consistent length of extension. While this approach can address both the installation of the device within the surge protector and the overall installation of the surge protector, it's inconvenient and inefficient. Utility Model Content

[0004] The present application aims to provide an installation structure for an electrical protection device and a surge protector, wherein the installation structure has good versatility and improves the installation efficiency of the surge protector components and the surge protector.

[0005] The embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a mounting structure for an electrical protection device, comprising:

[0007] A housing for accommodating the electrical protection device, wherein the housing has a first surface provided with a first opening communicating with the interior of the housing;

[0008] The first electrode sheet includes a first main body and a first connecting portion. The first main body is arranged in the shell for connecting to one of the positive pole or the negative pole of the electrical protection device. One end of the first connecting portion is connected to the first main body, and the other end extends out of the first opening for connecting to an external circuit. The end of the first connecting portion extending out of the first opening is provided with a protrusion, and the protrusion is hooked on the first surface to fix the electrical protection device.

[0009] In one embodiment of the present application, one end of the first connecting portion extending out of the first opening has a first connecting surface, the first connecting surface is used to connect to the external circuit, and the angle between the first connecting surface and the first surface is greater than 0° and less than 180°.

[0010] In an embodiment of the present application, an extension direction of the protrusion is parallel to the first connecting surface.

[0011] In one embodiment of the present application, the first connecting portion is bent relative to the first main body portion.

[0012] In one embodiment of the present application, the shape of the first body portion is annular, circular or spiral.

[0013] In one embodiment of the present application, the installation structure of the electrical protection device further includes:

[0014] The second electrode sheet has one end connected to the other of the positive electrode and the negative electrode of the electrical protection device, and the other end is bent to form a second connection surface, and the second connection surface is used to connect to an external circuit.

[0015] In one embodiment of the present application, the housing is provided with a second opening, and the second opening is used for allowing the second electrode sheet to extend out.

[0016] In one embodiment of the present application, the shell has a second surface, the second surface is perpendicular to the first surface, and the second opening is provided on the second surface.

[0017] In an embodiment of the present application, the second connecting surface is parallel to the second surface.

[0018] In a second aspect, an embodiment of the present application provides a surge protector, comprising:

[0019] electrical protection devices; and

[0020] The installation structure of the electrical protection device according to any one of the first aspects.

[0021] Beneficial effects:

[0022] In the technical solution of the present application, a first opening is provided on the first surface of the shell, and a protrusion is provided at one end of the first electrode sheet extending out of the first opening to be hooked on the shell, so that the electrical protection device and the shell are relatively fixed, and the installation of the electrical protection device is achieved. Regardless of how the size of the shell and the size of the electrical protection device change, the length of the first electrode sheet extending out of the shell can be guaranteed to be constant. On the basis of ensuring the stability of the electrical connection of the electrical protection device, installation, maintenance and replacement are facilitated, installation efficiency is improved, and the versatility of the shell and the electrical protection device is improved.

[0023] The first electrode sheet includes a first main body portion and a first connecting portion. The first connecting portion extends out of the first opening and is provided with the aforementioned protrusion. The first main body portion extends in a direction parallel to the first surface, thereby increasing the connection area between the first main body portion and the electrical protection device. At the same time, the first electrode sheet is further fixed to the shell through the cooperation of the first main body portion and the protrusion, thereby improving the installation stability of the electrical protection device.

[0024] In addition, the end of the first connecting portion extending out of the first opening has a first connecting surface, and the first electrode sheet is used to connect to an external circuit through the first connecting surface. The first connecting surface is constructed to form an angle of 0-180 degrees with the first surface, so that the first connecting surface is not flat on the first surface. The first connecting surface is constructed as a vertical surface or an inclined surface, which can increase the contact area between the first connecting portion and the connecting sheet. It also facilitates welding and avoids the adverse effects of welding heat on the shell.

[0025] Furthermore, the extension direction of the protrusion provided on the first connecting portion is parallel to the first connecting surface, which also increases the first connecting surface and improves the electrical connection stability of the first connecting portion.

[0026] In addition, one end of the second electrode sheet extending out of the shell is bent to form a second connecting surface. The second connecting surface is not flat on the surface of the mounting base. The second connecting surface is constructed as a vertical surface or an inclined surface, which can increase the contact area between the second connecting portion and the connecting sheet. In addition, it is convenient for welding and avoids the adverse effects of welding heat on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a surge protector provided in one embodiment of the present application;

[0029] Figure 2 A schematic diagram of the installation structure of an electrical protection device provided in one embodiment of the present application;

[0030] Figure 3 A schematic diagram of the connection structure between the first electrode sheet, the second electrode sheet and the electrical protection device provided in one embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of the connection structure of the first electrode sheet, the second electrode sheet and the electrical protection device provided in another embodiment of the present application.

[0032] Icon: 1000-mounting base, 2000-connecting piece, 2001-elastic clip, 2002-connecting piece, 3000-mounting structure, 4000-electrical protection device, 4001-pole, 1-shell, 11-first surface, 12-first opening, 13-second surface, 14-second opening, 2-first electrode sheet, 21-first main body, 211-through hole, 22-first connecting part, 221-first connecting surface, 23-protrusion, 3-second electrode sheet, 31-second connecting surface. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] A surge protector generally includes a mounting base, two connectors, and an electrical protection device. The electrical protection device and the two connectors are all fixed to the mounting base, with the two connectors located at the ends of the mounting base and the electrical protection device located in the middle of the mounting base.

[0037] The two connectors each include an elastic clip and a connecting piece. The connecting pieces of the two connectors are respectively connected to the positive and negative poles of the electrical protection device. The two elastic clips are used for inserting terminals of an external circuit to connect the electrical protection device to the external circuit.

[0038] In the related art, in order to fix the electrical protection device to the mounting base, a shell for support is generally provided, the shell is fixed to the mounting base, and the electrical protection device is arranged inside the shell. The electrical protection device is not directly fixed to the shell, but a gasket is provided between the electrical protection device and the inner wall of the shell to clamp the electrical protection device in the shell. Since the electrical protection device is not directly fixed to the shell, it is convenient to repair and replace the electrical protection device. When using electrical protection devices of different specifications, the thickness of the gaskets on both sides of the electrical protection device can be adjusted so that the length of the electrode sheets on the electrical protection device extending out of the shell is roughly the same, so as to ensure the stability of the connection with the connector. Although this method can solve the problem of installation and replacement of electrical protection devices, it is not convenient to install and has low efficiency.

[0039] The present application provides an installation structure for an electrical protection device and a surge protector, which solves the problem in a surge protector that the electrical protection device is difficult to match with the housing of the surge protector, making installation inconvenient.

[0040] like Figure 1-4 As shown, the surge protector includes an electrical protection device 4000 and a mounting structure 3000 for mounting the electrical protection device 4000 .

[0041] Please refer to Figure 1 As shown, the surge protector further includes a mounting base 1000 and two connectors 2000. Both connectors 2000 are fixed to the mounting base 1000, and the electrical protection device 4000 is fixed to the mounting base 1000 via a mounting structure 3000. The two connectors 2000 each include an elastic clip 2001 and a connecting piece 2002. The connecting pieces 2002 of the two connectors 2000 are respectively used to connect to the positive and negative electrodes of the electrical protection device 4000. The two elastic clips 2001 are provided for inserting terminals of an external circuit to connect the electrical protection device 4000 to the external circuit.

[0042] like Figure 2 As shown, the mounting structure 3000 includes a housing 1 and a first electrode sheet 2 .

[0043] The housing 1 is fixed to the surface of the mounting base 1000 to form a space on the surface of the mounting base 1000 for accommodating the electrical protection device 4000 .

[0044] The housing 1 has a first surface 11, which is connected to Figure 1 and Figure 2As shown, the first surface 11 is the side of the housing 1 facing away from the mounting base 1000. Optionally, the side of the housing 1 facing the mounting base 1000 is provided with a second surface 13, thereby forming a space inside the housing 1 for accommodating the electrical protection device 4000. Alternatively, the side of the housing 1 facing the mounting base 1000 is configured as an open structure without the second surface 13, thereby forming a space for accommodating the electrical protection device 4000 together with the mounting base 1000.

[0045] The first surface 11 is provided with a first opening 12 communicating with the interior of the housing 1 .

[0046] like Figure 3 As shown, the first electrode sheet 2 includes a first body portion 21 and a first connecting portion 22. The first body portion 21 is disposed in the housing 1 for connecting to one of the positive or negative electrodes of the electrical protection device 4000. Figure 1 As shown, one end of the first connecting portion 22 is connected to the first body portion 21 and the other end extends out of the first opening 12 for connecting to an external circuit.

[0047] A protrusion 23 is formed at one end of the first connection portion 22 extending out of the first opening 12 . The protrusion 23 is hooked on the first surface 11 to fix the electrical protection device 4000 .

[0048] The mounting structure 3000 provided in the embodiment of the present application, by providing a protrusion 23 on the first electrode sheet 2 to cooperate with the shell 1 having the first opening 12, fixes the electrical protection device 4000 relative to the shell 1, and realizes the installation of the electrical protection device 4000. Regardless of how the size of the shell 1 and the size of the electrical protection device 4000 change, it is possible to ensure that the length of the first electrode sheet 2 extending out of the shell 1 is constant. On the basis of ensuring the stability of the electrical connection of the electrical protection device 4000, it is convenient for installation, maintenance and replacement, thereby improving installation efficiency and improving the versatility of the shell 1 and the electrical protection device 4000.

[0049] To facilitate connection, the end of the first connection portion 22 extending from the first opening 12 has a first connection surface 221, which is used to connect to an external circuit. In some embodiments, the angle between the first connection surface 221 and the first surface 11 is greater than 0° and less than 180°. Figure 2 The first connection portion 22 includes two surfaces arranged opposite to each other, each of which forms a certain angle with the first surface 11 and can serve as the first connection surface 221. For example, Figure 1 and Figure 2 As shown, one of the two surfaces of the first connecting portion 22 faces outward from the paper and the other faces inward from the paper. Figure 1The side facing the inside of the paper is used as the first connecting surface 221, and the first connecting surface 221 is attached and welded to the connecting piece 2002. Figure 2 The side facing out of the paper is referred to as the first connecting surface 221. Since the first connecting surface 221 is not flat against the first surface 11, the first connecting surface 221 is constructed as a vertical surface or an inclined surface, which can increase the contact area between the first connecting portion 22 and the connecting piece 2002. In addition, it is convenient for welding and avoids the adverse effects of welding heat on the housing 1.

[0050] In some embodiments, the protrusion 23 provided on the first connection portion 22 extends parallel to the first connection surface 221. The protrusion 23 not only hooks onto the first surface 11 to secure the electrical protection device 4000, but also increases the size of the first connection surface 221, thereby improving the electrical connection stability of the first connection portion 22.

[0051] In some embodiments, the first connecting portion 22 is bent relative to the first main body portion 21. Figure 2 and Figure 3 As shown, the first body portion 21 extends in a direction parallel to the first surface 11, and the first connection portion 22 extends in a direction perpendicular to the first surface 11. This arrangement provides a larger connection area between the first body portion 21 and the electrical protection device 4000, and better connection stability. In addition, the first body portion 21 acts as a limiter, and the first electrode sheet 2 is further fixed to the housing 1 through the cooperation of the first body portion 21 and the protrusion 23, thereby improving the installation stability of the electrical protection device 4000. In this case, the electrical protection device 4000 can be configured such that one of the positive and negative electrodes of the electrical protection device 4000 faces the first surface 11, and the other faces away from the first surface 11.

[0052] In some embodiments, the first body portion 21 is annular, circular, or spiral in shape.

[0053] For example, Figure 3 As shown, the first main body 21 is in the shape of a ring. The ring-shaped first main body 21 is fixed on the surface of the electrical protection device 4000, and a through hole 211 is formed in the middle. The positive or negative pole of the electrical protection device 4000 is provided with a pole 4001, and the pole 4001 is passed through the through hole 211 and welded and fixed. This structure enables the first main body 21 to be connected to the outer shell of the electrical protection device 4000 and to the pole 4001 of the electrical protection device 4000. The stability of the connection structure is improved through the double connection. At the same time, the through hole 211 also has the function of facilitating installation and positioning.

[0054] The ring-shaped embodiment of the present application may be a circular ring (such as Figure 3 As shown), it can also be a square ring structure (as Figure 4 As shown), or it can also be other special-shaped ring structures.

[0055] In other embodiments, the shape of the first body portion 21 may be set to be circular or spiral, so as to increase the connection area of ​​the first body portion 21 and improve the connection stability between the first body portion 21 and the electrical protection device 4000.

[0056] The mounting structure 3000 of the electrical protection device provided in the embodiment of the present application further includes a second electrode sheet 3, one end of which is connected to the other of the positive electrode and the negative electrode of the electrical protection device 4000, and the other end of the second electrode sheet 3 is bent to form a second connection surface 31, which is used to connect to an external circuit. For example, Figure 3 As shown, the second connecting surface 31 is attached to and welded to another connecting piece 2002 .

[0057] In some embodiments, the housing 1 is provided with a second opening 14 , and the second opening 14 is used for the second electrode sheet 3 to extend out.

[0058] In some embodiments, the housing 1 has a second surface 13 that is perpendicular to the first surface 11, and a second opening 14 is provided on the second surface 13. By providing the first opening 12 and the second opening 14 on two non-parallel surfaces, the first electrode sheet 2 and the second electrode sheet 3 are spaced apart by a larger distance, which is less likely to cause a short circuit and provides higher safety.

[0059] Optionally, the second surface 13 of the shell 1 is not provided with a side wall but forms a second opening 14, so that the second opening 14 can not only allow the second electrode sheet 3 to extend, but also allow the power protection device 4000 to enter and exit the shell 1. With the first electrode sheet 2 and the shell 1 fixed together, the power protection device 4000 will not fall out of the second opening 14 after installation, thereby further improving the installation efficiency while ensuring the installation stability of the power protection device 4000.

[0060] In some embodiments, the second connection surface 31 is parallel to the second surface 13. The second connection surface 31 is not flat against the surface of the mounting base 1000. The second connection surface 31 is configured as a vertical surface or an inclined surface, which can increase the contact area between the second connection portion and the connecting piece 2002. In addition, it is convenient for welding and avoids the adverse effects of welding heat on the housing 1. For example, Figure 3 As shown, the second electrode sheet 3 extends in a direction parallel to the first surface 11 , and the portion of the second electrode sheet 3 extending out of the second opening 14 is bent to form a second connecting surface 31 .

[0061] In the description of this application, it should be noted that if the terms "center," "upper," "lower," "inner," "outer," etc. appear in the description, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on this application. In addition, if the terms "first," "second," etc. appear in the description of this application, they are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0062] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0063] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An installation structure for an electrical protection device, used for installing an electrical protection device of a surge protector, characterized in that: include: A housing for accommodating the electrical protection device, wherein the housing has a first surface provided with a first opening communicating with the interior of the housing; The first electrode sheet includes a first main body and a first connecting portion. The first main body is arranged in the shell for connecting to one of the positive pole or the negative pole of the electrical protection device. One end of the first connecting portion is connected to the first main body, and the other end extends out of the first opening for connecting to an external circuit. The end of the first connecting portion extending out of the first opening is provided with a protrusion, and the protrusion is hooked on the first surface to fix the electrical protection device.

2. The installation structure of the electrical protection device according to claim 1, characterized in that: One end of the first connection portion extending out of the first opening has a first connection surface, the first connection portion is connected to the external circuit via the first connection surface, and an angle between the first connection surface and the first surface is greater than 0° and less than 180°.

3. The installation structure of the electric protection device according to claim 2, characterized in that: An extending direction of the protrusion is parallel to the first connecting surface.

4. The installation structure of the electric protection device according to claim 2, characterized in that: The first connecting portion is bent relative to the first main body portion.

5. The installation structure of the electric protection device according to claim 1, characterized in that: The first body portion has a ring shape, a circle shape or a spiral shape.

6. The installation structure of the electric protection device according to claim 1, characterized in that: The installation structure of the electrical protection device also includes: The second electrode sheet has one end connected to the other of the positive electrode and the negative electrode of the electrical protection device, and the other end is bent to form a second connection surface, and the second connection surface is used to connect to an external circuit.

7. The installation structure of the electric protection device according to claim 6, characterized in that: The housing is provided with a second opening, and the second opening is used for allowing the second electrode sheet to extend out.

8. The installation structure of the electric protection device according to claim 7, characterized in that: The housing has a second surface, the second surface is perpendicular to the first surface, and the second opening is arranged on the second surface.

9. The installation structure of the electric protection device according to claim 8, characterized in that: The second connecting surface is parallel to the second surface.

10. A surge protector, characterized in that: include: electrical protection devices; and The installation structure of the electrical protection device according to any one of claims 1 to 9.

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