Surge protection device MOV
By setting a recessed area on the surface of the surge protector MOV body and designing electrode connection pieces and lead-out pins, the problem of MOV aging and instantaneous collapse under multiple lightning strikes or multi-pulse high currents is solved, realizing the controllability of the breakdown point and the reliability of tripping, and avoiding the risk of equipment burnout.
Patent Information
- Application Number
- CN202423099187.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing surge protectors (MOVs) are prone to aging and instantaneous collapse under repeated lightning strikes, multi-pulse high currents, or repeated operational overvoltages. This can lead to uncontrollable heating points and breakdown points, potentially causing short circuits, flames, and even burning out the distribution cabinet system.
A recessed area is provided on the surface of the MOV body to designate the collapse and breakdown point. Through the connection piece and lead-out design of the first and second electrode bodies, the heating point and breakdown point are controlled, realizing accurate varistor voltage measurement and surge voltage initiation, and preventing flame burn and detachment mechanism during breakdown.
By controlling the heating point and breakdown point, the surge protector can be tripped in time when it breaks down, avoiding short circuit and sparking, thus improving the safety and reliability of the product and preventing equipment damage.
Smart Images

Figure CN223651961U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pressure sensitive resistance technical field, concretely relates to a surge protector MOV. BACKGROUND
[0002] The MOV is basically the two surface planes of the flat plane mold of the hydraulic machine or the mechanical press forming, the overall structure is theoretically correct, but the density and the thickness of the forming blank have certain difference due to the equipment mold and the powder shape and eccentric problem, the product performance and the pressure sensitive voltage of each part have some high and low difference in the sintering forming process, the MOV of the surge protector is aged and instantaneously collapses in the use process when meeting multiple lightning strokes or multiple impulse current, multiple operating overvoltage, the heat spot and the breakdown point of instantaneous collapse caused by product voltage density etc.
[0003] Therefore, the applicant has made beneficial design, found the method for solving the above problems, and the technical scheme to be introduced below is generated under this background. CONTENT OF THE UTILITY MODEL
[0004] The utility model relates to a surge protector MOV to solve the problems in the background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of surge protector MOV, including MOV body and the first electrode body and second electrode body respectively arranged in MOV body two sides, the MOV body one side surface is equipped with sunken area, the first electrode body includes first connecting piece, the first connecting piece one side extends and is equipped with first lead-out pin, the second electrode body includes second connecting piece, the second connecting piece one side extends and is equipped with second lead-out pin and is bent forward.
[0007] Preferably, the sunken area is arranged at the center of the MOV body one side surface.
[0008] Preferably, the depth of the sunken area is directly proportional to the pressure sensitive voltage gradient.
[0009] Preferably, the area of the sunken area is directly proportional to the area of the MOV body.
[0010] Preferably, the sunken area can be of any shape.
[0011] Preferably, the first connecting piece and the second connecting piece are both provided with a through opening. Advantages
[0012] The one or more technical solutions of the MOV of the surge protector provided by the embodiments of the present utility model have at least one of the following technical effects:
[0013] According to the above technical solution, the MOV body is provided with a sinking area, the sinking area is arranged at a specified position of the breakdown point of the MOV body, the heating point and the breakdown point of the MOV body are controllable, the specified measuring point of the voltage of the MOV is measured, the accuracy of the voltage and the starting point of the surge voltage are ensured, and the burning and separation mechanism is effectively prevented from being burned and separated due to the breakdown point in the position close to the electrode tripping point. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the present utility model;
[0015] Figure 2 It is an explosion structure schematic view of the present utility model;
[0016] Figure 3 It is a MOV body structure schematic view of the present utility model;
[0017] Figure 4 It is a first electrode body and a second electrode body structure schematic view of the present utility model.
[0018] The corresponding relationship between the annotations of the drawings and the component names in the drawings is as follows:
[0019] 100, MOV body; 101, sinking area;
[0020] 200, first electrode body; 201, first connecting piece; 203, first lead-out pin;
[0021] 300, second electrode body; 301, second connecting piece; 302, second lead-out pin;
[0022] 400, through opening. DETAILED DESCRIPTION
[0023] The technical solutions of the present utility model will be described clearly and completely in combination with the embodiments, obviously, the described embodiments are a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the present utility model.
[0024] In the description of the utility model, it needs to be understood that the orientation or position relation indicated by the terms such as ''up'', ''down'', ''left'', ''right'' in the description is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0025] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms ''set'', ''install'', ''connect'', ''connection'' should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model by the ordinary skill in the art.
[0026] As shown in the figure, it is a structure schematic view of a surge protector MOV of a preferred embodiment of the utility model, Figures 1-4
[0027] In the embodiment, the MOV body 100 and the first electrode body 200 and the second electrode body 300 arranged on the two sides of the MOV body 100 are included, the surface of one side of the MOV body 100 is provided with a sunken area 101, the first electrode body 200 includes a first connecting sheet 201, the first connecting sheet 201 is provided with a first lead-out pin 202 extending forward on one side, the second electrode body 300 includes a second connecting sheet 301, the second connecting sheet 301 is provided with a second lead-out pin 302 extending and bending forward on one side. By providing the sunken area 101 on the surface of the MOV body 100, by setting the sunken area 101 as the specified position of the breakdown point of the MOV body 100, the heating point and the breakdown point of the MOV body 100 are controllable, and it is also the specified measurement point of the pressure-sensitive voltage of the MOV, the accuracy of the pressure-sensitive voltage and the starting point of the surge voltage are ensured, and the fire spouting and burning of the tripping mechanism when the breakdown point is effectively avoided in the position close to the electrode tripping point
[0028] In the embodiment, the sunken area 101 is arranged at the center of the surface of one side of the MOV body 100, and the sunken area 101 arranged at the center of the MOV body 100 is a more preferred position.
[0029] In the embodiment, the depth of the sunken area 101 is inversely proportional to the pressure-sensitive voltage gradient, when the pressure-sensitive voltage gradient voltage is larger, the depth of the sunken area 101 is set to be shallower, when the pressure-sensitive voltage gradient is smaller, the depth of the sunken area 101 is set to be deeper.
[0030] In the embodiment, the area of the sinking area 101 is proportional to the area of the MOV body 100, that is, the larger the MOV body, the larger the sinking area 101, and the smaller the MOV body, the smaller the sinking area 101.
[0031] In the embodiment, the sinking area 101 can be of any shape, and the sinking area 101 can be arranged at any position on the MOV body.
[0032] In the embodiment, the first connecting piece 201 and the second connecting piece 301 are both provided with a through hole 400 on the surface thereof, and the through hole 400 is used to leak the sinking area 101 on the surface of the MOV body 100.
[0033] The MOV of the utility model is installed, connected or arranged in a common mechanical manner, and any manner that can achieve the beneficial effects can be implemented.
[0034] The technologies not described in detail in the utility model are all known technologies, and the skilled in the art can easily implement the utility model based on the understanding of the specification, and the contents shown in the drawings are part of the specification.
[0035] The above content is a further detailed description of the utility model in combination with the specific embodiments, and cannot be considered as limiting the specific implementation of the utility model to these descriptions. For the ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be considered as belonging to the protection scope determined by the claims of the utility model. The above content is a further detailed description of the utility model in combination with the specific embodiments, and cannot be considered as limiting the specific implementation of the utility model to these descriptions. For the ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be considered as belonging to the protection scope determined by the claims of the utility model.
Claims
1. A surge protector (MOV) comprising a MOV body, and a first electrode body and a second electrode body respectively arranged on both sides of the MOV body, characterized in that: The MOV body is provided with a sunken area on one side surface, the first electrode body includes a first connecting sheet, one side of the first connecting sheet extends forward and is provided with a first lead-out pin, the second electrode body includes a second connecting sheet, one side of the second connecting sheet extends and is bent forward to be provided with a second lead-out pin.
2. The surge protector MOV of claim 1, wherein: The sunken area is arranged at the center of one side surface of the MOV body.
3. The surge protector MOV of claim 1, wherein: The depth of the sunken area is inversely proportional to the pressure sensitive voltage gradient.
4. The surge protector MOV of claim 1, wherein: The area of the sunken area is proportional to the area of the MOV body.
5. The surge protector MOV of claim 1, wherein: The sunken area can be of any shape.
6. The surge protector MOV of claim 1, wherein: The first connecting sheet and the second connecting sheet are both provided with a through hole on the surface.