CN217933351U - Ageing-resistant varistor with heat dissipation function - Google Patents
Ageing-resistant varistor with heat dissipation function Download PDFInfo
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- CN217933351U CN217933351U CN202221839063.2U CN202221839063U CN217933351U CN 217933351 U CN217933351 U CN 217933351U CN 202221839063 U CN202221839063 U CN 202221839063U CN 217933351 U CN217933351 U CN 217933351U
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Abstract
The application discloses ageing-resistant varistor piece with heat dissipation function relates to electronic components technical field, improves some current ageing-resistant varistor pieces, because the relatively poor problem of taking place some burning accidents easily when using of thermal diffusivity, include including fire-retardant shell and the inside resistance card body of setting at fire-retardant shell, the relative both sides of resistance card body all are provided with the electrode slice, the surface of resistance card body is provided with the insulating layer, the surface that the resistance card body was kept away from to the insulating layer is provided with the cooling layer, the insulating layer comprises epoxy, the electrode slice includes the electrode main part, electrode main part and resistance card body side fixed connection. This application is when using, and the condition that the reducible resistance chip body in cooling layer generates heat, and fire-retardant shell can protect the resistance body in the use, and when the burning took place for the resistance chip body, the condition that the reducible flame of fire-retardant shell stretchs.
Description
Technical Field
The application relates to the field of electronic components, in particular to an anti-aging piezoresistor disc with a heat dissipation function.
Background
Piezoresistors are widely used as surge overvoltage protection elements in various electronic equipment such as televisions, refrigerators, air conditioners, washing machines and the like, and the conventional resistor disc is required to be subjected to aging resistance modification in order to prolong the service life of the resistor disc.
In the process of implementing the application, the inventor finds that at least the following problems exist in the prior art, and the aging-resistant varistor sheet with the heat dissipation function is provided because the aging-resistant varistor sheet has poor heat dissipation performance and is easy to cause burning accidents in use.
SUMMERY OF THE UTILITY MODEL
In order to improve some present ageing-resistant resistance cards, because the relatively poor problem that takes place some burning accidents easily when using of thermal diffusivity, this application provides an ageing-resistant varistor piece with heat dissipation function.
The application provides an ageing-resistant varistor with heat dissipation function adopts following technical scheme:
the anti-aging voltage-sensitive resistor disc with the heat dissipation function comprises a flame-retardant shell and a resistor disc body arranged inside the flame-retardant shell, wherein electrode plates are arranged on two opposite sides of the resistor disc body;
the outer surface of the resistance card body is provided with an insulating layer, and the outer surface of the insulating layer, which is far away from the resistance card body, is provided with a cooling layer.
Through adopting above-mentioned technical scheme, when using, the condition that the reducible resistance chip body of cooling layer generates heat, and fire-retardant shell can protect the resistance body in the use, and when the burning took place for the resistance chip body, the condition that the reducible flame of fire-retardant shell stretchs.
Optionally, the insulating layer is made of epoxy resin.
By adopting the technical scheme, the insulating property of the resistor disc body can be improved by the epoxy resin.
Optionally, the electrode plate comprises an electrode main body, the electrode main body is fixedly connected with the side face of the resistance card body, and a main antenna and an auxiliary antenna are fixedly connected to the electrode main body.
By adopting the technical scheme, the auxiliary antenna can conveniently supply power or provide a trigger signal for the peripheral circuit without influencing the electrical connection of the main antenna.
Optionally, the outer surface of the flame-retardant shell is provided with an anti-slip groove.
Through adopting above-mentioned technical scheme, the frictional force between multiplicable staff hand of antiskid recess and the fire-retardant shell increases the non-skid property of fire-retardant shell.
Optionally, the flame retardant housing is comprised of flame retardant PVC.
By adopting the technical scheme, the flame-retardant PVC has the performances of insulativity, toughness, high temperature resistance, high pressure resistance, abrasion resistance and aging resistance.
Optionally, a through groove for the main antenna and the auxiliary antenna to pass through is formed in the flame-retardant shell, and the main antenna and the auxiliary antenna penetrate through the through groove to the outside of the flame-retardant shell.
Through adopting above-mentioned technical scheme, lead to the groove and can make main antenna and supplementary antenna run through to the equipment outside, make things convenient for main antenna and supplementary antenna and external circuit to be connected.
Optionally, the cooling layer is composed of bromoethane.
By adopting the technical scheme, the heating condition of the resistor disc body can be reduced by the ethyl bromide.
Optionally, the two opposite sides of the resistor disc body are fixedly provided with clamping blocks, and the outer surface of the flame-retardant shell is provided with clamping grooves matched with the clamping blocks.
By adopting the technical scheme, the fixture blocks and the clamping grooves can increase the contact area between the resistance card body and the flame-retardant shell, so that the connection between the resistance card body and the flame-retardant shell is more stable.
In summary, the present application has the following beneficial effects:
this application is when using, and the condition that the reducible resistance card body in cooling layer generates heat, and fire-retardant shell can protect the resistance body in the use, and when the burning took place for the resistance card body, the condition that the reducible flame of fire-retardant shell stretchs, this structure convenient to use, the practicality is strong, is favorable to the popularization and the use of scope nature.
Drawings
Fig. 1 is a schematic top sectional view of the present application.
Description of reference numerals:
1. a flame retardant housing; 2. a resistor disc body; 3. an electrode sheet; 301. an electrode body; 302. a primary antenna; 303. an auxiliary antenna; 4. an insulating layer; 5. a cooling layer; 6. and (7) clamping blocks.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
Referring to fig. 1, an aging-resistant varistor with a heat dissipation function includes a flame-retardant housing 1 and a varistor body 2 disposed inside the flame-retardant housing 1, the flame-retardant housing 1 is made of flame-retardant PVC, and the PVC plastic has insulation, toughness, high temperature resistance, high pressure resistance, wear resistance, and aging resistance. The anti-skidding recess has been seted up to fire-retardant shell 1's surface, and the frictional force between multiplicable staff's hand and fire-retardant shell 1 of anti-skidding recess increases fire-retardant shell 1's non-skid property.
Referring to fig. 1, the two opposite sides of the resistor disc body 2 are fixedly provided with the fixture blocks 6, the outer surface of the flame-retardant housing 1 is provided with the clamping grooves matched with the fixture blocks 6, and the fixture blocks 6 and the clamping grooves can increase the contact area between the resistor disc body 2 and the flame-retardant housing 1, so that the connection between the resistor disc body 2 and the flame-retardant housing 1 is more stable.
Referring to fig. 1, the electrode plates 3 are disposed on two opposite sides of the resistor disc body 2, each electrode plate 3 includes an electrode main body 301, the electrode main body 301 is fixedly connected to a side surface of the resistor disc body 2, a main antenna 302 and an auxiliary antenna 303 are fixedly connected to the electrode main body 301, and the auxiliary antenna 303 can conveniently supply power or provide a trigger signal for a peripheral circuit without affecting the electrical connection of the main antenna 302.
Referring to fig. 1, a through groove for the main antenna 302 and the auxiliary antenna 303 to pass through is formed in the flame-retardant housing 1, the main antenna 302 and the auxiliary antenna 303 pass through the through groove to the outside of the flame-retardant housing 1, and a sealing gasket is arranged between the main antenna 302, the auxiliary antenna 303 and the inner wall of the through groove. The through grooves can enable the main antenna 302 and the auxiliary antenna 303 to penetrate through the outside of the equipment, and the main antenna 302 and the auxiliary antenna 303 are convenient to connect with an external circuit.
Referring to fig. 1, an insulating layer 4 is disposed on an outer surface of the resistor body 2, and the insulating layer 4 is made of epoxy resin, which can increase the insulating performance of the resistor body 2. The outer surface of the insulating layer 4 far away from the resistance chip body 2 is provided with a cooling layer 5, the cooling layer 5 is composed of ethyl bromide, and the condition that the resistance chip body 2 generates heat can be reduced by the ethyl bromide.
The application has the implementation principle that: when the resistance card is used, when the temperature of the resistance card body 2 rises to the melting point of bromoethane, the bromoethane can be melted into liquid, and a large amount of heat energy can be absorbed in the melting process, so that the aim of effectively reducing the temperature is fulfilled; when the resistance card body 2 burns, the flame-retardant shell 1 can reduce the condition of flame spread.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An ageing-resistant varistor disc with heat dissipation function which characterized in that: the flame-retardant resistor disc comprises a flame-retardant shell (1) and a resistor disc body (2) arranged in the flame-retardant shell (1), wherein electrode plates (3) are arranged on two opposite sides of the resistor disc body (2);
the outer surface of resistance card body (2) is provided with insulating layer (4), the surface that insulating layer (4) kept away from resistance card body (2) is provided with cooling layer (5).
2. The aging-resistant varistor sheet with heat dissipation function of claim 1, wherein: the insulating layer (4) is made of epoxy resin.
3. The aging-resistant varistor sheet with heat dissipation function of claim 1, wherein: electrode slice (3) include electrode main part (301), electrode main part (301) and resistance card body (2) side fixed connection, fixedly connected with owner antenna (302) and supplementary antenna (303) on electrode main part (301).
4. The aging-resistant varistor sheet with heat dissipation function of claim 1, wherein: the outer surface of the flame-retardant shell (1) is provided with an anti-skid groove.
5. The aging-resistant varistor sheet with heat dissipation function of claim 1, wherein: the flame-retardant shell (1) is made of flame-retardant PVC.
6. A varistor sheet with heat dissipation as recited in claim 3, wherein: the flame-retardant shell is characterized in that a through groove for the main antenna (302) and the auxiliary antenna (303) to pass through is formed in the flame-retardant shell (1), and the main antenna (302) and the auxiliary antenna (303) penetrate through the through groove to the outside of the flame-retardant shell (1).
7. The aging-resistant varistor sheet with heat dissipation function of claim 1, wherein: the cooling layer (5) is composed of bromoethane.
8. The aging-resistant varistor sheet with heat dissipation function of claim 1, wherein: the anti-flaming resistor disc is characterized in that clamping blocks (6) are fixedly mounted on two opposite sides of the resistor disc body (2), and clamping grooves matched with the clamping blocks (6) are formed in the outer surface of the anti-flaming shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221839063.2U CN217933351U (en) | 2022-07-16 | 2022-07-16 | Ageing-resistant varistor with heat dissipation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221839063.2U CN217933351U (en) | 2022-07-16 | 2022-07-16 | Ageing-resistant varistor with heat dissipation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217933351U true CN217933351U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221839063.2U Active CN217933351U (en) | 2022-07-16 | 2022-07-16 | Ageing-resistant varistor with heat dissipation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217933351U (en) |
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2022
- 2022-07-16 CN CN202221839063.2U patent/CN217933351U/en active Active
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