CN113363123A - Composite protector and manufacturing method thereof - Google Patents

Composite protector and manufacturing method thereof Download PDF

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Publication number
CN113363123A
CN113363123A CN202110820979.7A CN202110820979A CN113363123A CN 113363123 A CN113363123 A CN 113363123A CN 202110820979 A CN202110820979 A CN 202110820979A CN 113363123 A CN113363123 A CN 113363123A
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CN
China
Prior art keywords
lead
conductive cap
insulating tube
insulating
fuse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110820979.7A
Other languages
Chinese (zh)
Inventor
项伟荣
高琳
刘爱营
高连忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Better Electronics Technology Co ltd
Original Assignee
Dongguan Better Electronics Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Better Electronics Technology Co ltd filed Critical Dongguan Better Electronics Technology Co ltd
Priority to CN202110820979.7A priority Critical patent/CN113363123A/en
Publication of CN113363123A publication Critical patent/CN113363123A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
    • H01C1/034—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being formed as coating or mould without outer sheath
    • H01C1/036—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being formed as coating or mould without outer sheath on wound resistive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/02—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/04—Apparatus or processes specially adapted for manufacturing resistors adapted for winding the resistive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H01C3/14—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding
    • H01C3/20—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding wound on cylindrical or prismatic base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02—Manufacture of fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Fuses (AREA)

Abstract

The invention discloses a composite protector and a manufacturing method thereof, wherein the composite protector comprises: the two ends of the insulating tube are respectively sleeved with a first conductive cap and a second conductive cap; the resistance wire is wound on the outer surface of the insulating tube and is respectively and electrically connected with the first conductive cap and the second conductive cap; the fuse is accommodated in the insulating tube and comprises a temperature fuse-link, a first lead and a second lead, wherein the first lead and the second lead are connected with two ends of the temperature fuse-link; and the insulating piece is arranged between the temperature fuse link and the second lead at intervals so as to enable the second lead to be insulated from the temperature fuse link and the first lead respectively. The invention omits a porcelain tube sleeved outside the temperature fuse body, so that the invention can reduce the internal space of the insulating tube occupied by the fuse, thereby reducing the size of the whole product; moreover, the fuse without the porcelain tube is cheaper than the existing finished fuse, so that the production cost can be reduced.

Description

Composite protector and manufacturing method thereof
Technical Field
The invention belongs to the technical field of electric appliance protection devices, and particularly relates to a composite protector and a manufacturing method thereof.
Background
The composite protector is generally formed by connecting a resistor and a temperature fuse in series, is mostly used in a charger or an adapter, effectively realizes over-temperature and over-current protection, and prevents the resistor from continuously heating to cause deformation and even damage of the charger or the adapter in the normal use process.
The specific structure of the existing composite protector is shown in fig. 1, and comprises an insulating tube 1 'with an opening at one end and a fuse 2' arranged in the insulating tube 1 ', wherein caps 3' are arranged at two ends of the insulating tube, the fuse 2 'comprises a temperature-sensing body and two leads 21' connected with the temperature-sensing body, a porcelain tube is sleeved outside the temperature-sensing body, one lead penetrates out of the insulating tube through the opening end, and the other lead is bent along the opening end and then connected with the cap at the opening end; the resistance wire 4 'is wound on the insulating tube 1' and is respectively connected with the two caps 3 ', so that a series protection structure is formed with the fuse 2'.
However, the above-described composite protector structure has the following disadvantages: because the finished fuse is arranged in the insulating tube, a ceramic tube with larger volume is sleeved outside the temperature sensing body, and the occupied space in the insulating tube is larger, so that the overall size of the product is larger, the product is difficult to reduce, the space cannot be effectively saved, and the space utilization rate is greatly reduced.
Disclosure of Invention
One of the objects of the present invention is: in view of the deficiencies of the prior art, a composite protector is provided to reduce the internal space occupied by the fuse in the insulating tube, thereby reducing the size of the whole product.
In order to achieve the purpose, the invention adopts the following technical scheme:
a composite protector comprising:
the two ends of the insulating tube are respectively sleeved with a first conductive cap and a second conductive cap;
the resistance wire is wound on the outer surface of the insulating tube and is respectively and electrically connected with the first conductive cap and the second conductive cap;
the fuse is accommodated in the insulating tube and comprises a temperature fuse link, a first lead and a second lead, wherein the first lead and the second lead are connected with two ends of the temperature fuse link;
and the insulating piece is arranged between the temperature fuse link and the second lead at intervals so as to enable the second lead to be insulated from the temperature fuse link and the first lead respectively.
As an improvement of the present application, further comprising a protective coating, the protective coating coats the first conductive cap, the resistance wire, and the second conductive cap.
As an improvement of the present application, the protective coating is an epoxy coating, a silicone rubber coating, a silicone resin coating, or a silicone resin coating.
As an improvement of the application, the melting temperature of the temperature melt is 80-500 ℃. The melting temperature of the melt may be appropriately selected depending on the actual application.
As an improvement of the application, the material of the temperature melt is tin-copper alloy. By adjusting the proportion of tin and copper, the temperature melt can have different fusing temperatures.
As a refinement of the present application, the outer surface of the thermal link is coated with a fluxing agent. The fusing capability of the temperature fuse link can be improved, and the temperature fuse link can be fused quickly.
As an improvement of the present application, a surface of the insulating member in contact with the temperature fuse link is coated with an arc extinguishing agent. The arc extinguishing function is realized for the electric arc generated when the temperature fuse link is fused or short-circuited.
As an improvement of the present application, an inner wall surface of the insulating tube is coated with an arc extinguishing agent. The arc extinguishing function is realized for the electric arc generated when the temperature fuse link is fused or short-circuited.
As an improvement of the application, the insulating part is a ceramic sheet or a glass fiber sheet, and the insulating tube is a ceramic tube or a glass fiber tube. Wherein, the insulating tube and the insulating part can also adopt other insulating and temperature-resistant materials.
As an improvement of this application, insulating pipe inside is provided with an at least tip open-ended holding chamber, the fuse is arranged in the holding intracavity, just the open end passes through the sealing compound encapsulation.
As a refinement of the present application, the first conductive cap is a hole cap and the second conductive cap is a lead cap.
As a refinement of the present application, the first and second conductive caps are tin-plated iron caps.
As an improvement of this application, the thickness of insulating part is 0.01 ~ 2 mm.
As an improvement of the application, the wire diameter of the resistance wire is 0.01-1 mm.
In addition, the present application also provides a manufacturing method of the composite protector, which includes the following steps:
pressing a cap: pressing the first conductive cap and the second conductive cap at two ends of the insulating tube through a cap pressing machine;
winding: uniformly winding the resistance wire on the outer surface of the insulating tube, and respectively connecting two ends of the resistance wire with a first conductive cap and a second conductive cap;
assembling: bending a second lead of the fuse along the direction of the first lead, placing the second lead into an accommodating cavity of the insulating tube, enabling the first lead to extend out of the first conductive cap, enabling the second lead to be connected with the first conductive cap, and then placing the insulating piece between the second lead and the temperature fuse link;
gluing and sealing: sealing one open end of the insulating tube by using sealing glue to fix the fuse in the insulating tube;
coating: and (4) coating the whole product with a protective coating to obtain the composite protector.
Preferably, the method further comprises the following steps: and testing the resistance of the finished product to select products meeting the specification, and braiding the qualified products to facilitate automatic feeding of customer equipment.
Preferably, the method further comprises the following steps: and (4) fully inspecting the appearance of the product, and selecting the appearance defective products.
Preferably, the packaging further comprises: the product is packaged to prevent bad products in the transportation process.
Compared with the prior art, the invention at least has the following beneficial effects:
1) the invention relates to a composite protector, comprising: the two ends of the insulating tube are respectively sleeved with a first conductive cap and a second conductive cap; the resistance wire is wound on the outer surface of the insulating tube and is respectively and electrically connected with the first conductive cap and the second conductive cap; the fuse is accommodated in the insulating tube and comprises a temperature fuse link, a first lead and a second lead, wherein the first lead and the second lead are connected with two ends of the temperature fuse link; and the insulating piece is arranged between the temperature fuse link and the second lead at intervals so as to enable the second lead to be insulated from the temperature fuse link and the first lead respectively. Compared with the prior art, the invention omits a porcelain tube sleeved outside the temperature fuse body, and the insulating piece is arranged between the temperature fuse body and the second lead wire for insulation, so that the invention can reduce the space occupied by the fuse, thereby reducing the inner space of the insulating tube and finally reducing the size of the whole product; moreover, the fuse without the porcelain tube is much cheaper than the existing finished product temperature fuse, so that the production cost can be effectively reduced.
2) The preparation method of the composite protector provided by the invention has the advantages that the process is simple, the installation reliability of each component is good, the temperature melt can be ensured to be well electrically connected with the first conductive cap and the second conductive cap, the second lead can be ensured to have good insulativity with the temperature fuse link and the first lead respectively, the production cost is low, and the preparation method is suitable for large-scale production of enterprises.
Drawings
Fig. 1 is a schematic structural view of a composite protector of the prior art.
Fig. 2 is a schematic structural view of a composite protector according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a composite protector according to another embodiment of the present invention.
Wherein: 1' -an insulating tube; 2' -a fuse; 21' -lead wire; 3' -a cap; 4' -resistance wire;
1-an insulating tube; 2-a first conductive cap; 3-a second conductive cap; 4-resistance wire; 5-a fuse; 51-temperature fuse link; 52-first lead; 53-second lead; 6-an insulator; 7-protective coating; 8-sealing glue; 9-fluxing agent.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, or an electrical connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, it should be understood that the term "and/or" used in the present application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element. The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 2 to 3, a composite protector includes:
the two ends of the insulating tube 1 are respectively sleeved with a first conductive cap 2 and a second conductive cap 3;
the resistance wire 4 is wound on the outer surface of the insulating tube 1 and is respectively and electrically connected with the first conductive cap 2 and the second conductive cap 3;
the fuse 5 is accommodated in the insulating tube 1, the fuse 5 comprises a temperature fuse link 51, and a first lead 52 and a second lead 53 which are connected with two ends of the temperature fuse link 51, the first lead 52 extends out of the first conductive cap 2, and the second lead 53 is bent along the direction of the first lead 52 and is electrically connected with the first conductive cap 2;
and an insulator 6 disposed between the temperature fuse 51 and the second lead 53 at an interval so that the second lead 53 is insulated from the temperature fuse 51 and the first lead 52, respectively.
Compared with the prior art, the invention omits a porcelain tube sleeved outside the temperature fuse link 51, and the insulation piece 6 is arranged between the temperature fuse link 51 and the second lead 53 for insulation, so that the invention can reduce the space occupied by the fuse 5, thereby reducing the internal space of the insulation tube 1 and finally reducing the size of the whole product; moreover, the fuse 5 without the porcelain tube is much cheaper than the existing finished product temperature fuse 5, so that the production cost can be effectively reduced.
When the product is used, the resistance wire 4 can generate heat when passing through current, heat is conducted to the temperature fuse link 51 from outside to inside through the lead or air, and when the temperature reaches the action temperature of the temperature fuse link 51, the temperature fuse link 51 is disconnected, so that a circuit is disconnected, and the effect of protecting the circuit is achieved.
In some embodiments according to the present application, as shown in fig. 3, the composite protector further comprises a protective coating 7, said protective coating 7 covering said first conductive cap 2, said resistance wire 4 and said second conductive cap 3. The protective coating 7 is arranged to protect the resistance wire 4 and the conductive cap, so that the insulating property between the resistance wires 4 is improved, and the explosion-proof and lightning-resistant properties of the composite protector are improved.
In some embodiments according to the present application, the protective coating 7 is an epoxy coating, a silicone rubber coating, a silicone resin coating, or a silicone resin coating.
In some embodiments according to the present application, the temperature melt has a melting temperature of 80 to 500 ℃. The melting temperature of the temperature melt may be appropriately selected depending on the actual application, and may be, for example, 80 ℃, 100 ℃, 120 ℃, 140 ℃, 160 ℃, 180 ℃, 200 ℃, 250 ℃, 280 ℃, 300 ℃, 350 ℃, 380 ℃, 400 ℃, 450 ℃, 480 ℃, or 500 ℃.
In some embodiments according to the present disclosure, the material of the temperature melt is a tin-copper alloy. By adjusting the proportion of tin and copper, the temperature melt can have different fusing temperatures.
In some embodiments according to the present application, the outer surface of the thermal link 51 is coated with a fluxing agent 9. The fusing ability of the temperature fuse 51 can be improved, so that the temperature fuse 51 is rapidly fused.
In some embodiments according to the present application, the surface of the insulator 6 in contact with the thermal link 51 is coated with an arc extinguishing agent. The arc extinguishing function is performed on the arc generated when the temperature fuse link 51 is fused or short-circuited.
In some embodiments according to the present application, the inner wall surface of the insulating tube 1 is coated with an arc extinguishing agent. The arc extinguishing function is performed on the arc generated when the temperature fuse link 51 is fused or short-circuited.
In some embodiments according to the present application, the shape of the insulating member 6 is a sheet shape, a curved shape, or other irregular shapes, and the specific shape can be designed according to actual requirements.
In some embodiments according to the present application, the insulation member 6 is a ceramic sheet or a glass fiber sheet, and the insulation tube 1 is a ceramic tube or a glass fiber tube. Wherein, the insulating tube 1 and the insulating part 6 can also adopt other insulating and temperature-resistant materials.
In some embodiments according to the present application, the insulating tube 1 is provided with a receiving cavity with at least one open end, the fuse 5 is disposed in the receiving cavity, and the open end is sealed by a sealing compound 8.
In some embodiments according to the present application, the first conductive cap 2 is a hole cap and the second conductive cap 3 is a lead cap.
In some embodiments according to the present application, the first conductive cap 2 and the second conductive cap 3 are both tin-plated iron caps.
In some embodiments according to the present application, the insulating member 6 has a thickness of 0.01 to 2 mm. Wherein, the thickness of the insulating member 6 can be properly selected according to the actual application object; for example, it may be 0.01mm, 0.02mm, 0.05mm, 0.08mm, 0.1mm, 0.2mm, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, or 2 mm. It should be noted that the thickness of the insulating member 6 should not be too large but not too small, and too large will increase the volume of the whole product, and too small cannot perform the insulating function.
In some embodiments according to the application, the wire diameter of the resistance wire 4 is 0.01-1 mm. The wire diameter of the resistance wire 4 can be properly selected according to actual application objects; for example, it may be 0.01mm, 0.02mm, 0.05mm, 0.08mm, 0.1mm, 0.2mm, 0.5mm, 0.8mm, or 1 mm.
The embodiment also provides a manufacturing method of the composite protector, which comprises the following steps:
pressing a cap: pressing the first conductive cap 2 and the second conductive cap 3 at two ends of the insulating tube 1 by a cap pressing machine;
winding: uniformly winding a resistance wire 4 on the outer surface of the insulating tube 1, and respectively connecting two ends of the resistance wire 4 with a first conductive cap 2 and a second conductive cap 3;
assembling: bending a second lead 53 of the fuse 5 along the direction of the first lead 52, placing the second lead 53 into an accommodating cavity of the insulating tube 1, extending the first lead 52 out of the first conductive cap 2, connecting the second lead 53 with the first conductive cap 2, and placing the insulating piece 6 between the second lead 53 and the temperature fuse link 51;
gluing and sealing: sealing one open end of the insulating tube 1 by using sealing glue 8 to fix the fuse 5 in the insulating tube 1;
coating: and (4) coating the whole product with a protective coating 7 to obtain the composite protector.
In some embodiments according to the present application, further comprising a taping test: and testing the resistance of the finished product to select products meeting the specification, and braiding the qualified products to facilitate automatic feeding of customer equipment.
In some embodiments according to the present application, further comprising a full test: and (4) fully inspecting the appearance of the product, and selecting the appearance defective products.
In some embodiments according to the present application, further comprising a package: the product is packaged to prevent bad products in the transportation process.
Compared with the prior art, the manufacturing method of the composite protector is simple in process, good in assembly reliability of all components, capable of ensuring good electrical connection of the temperature melt and the first conductive cap 2 and the second conductive cap 3, capable of ensuring good insulation of the second lead 53 and the temperature fuse link 51 and the first lead 52, low in production cost and suitable for large-scale production of enterprises.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A composite protector, comprising:
the two ends of the insulating tube are respectively sleeved with a first conductive cap and a second conductive cap;
the resistance wire is wound on the outer surface of the insulating tube and is respectively and electrically connected with the first conductive cap and the second conductive cap;
the fuse is accommodated in the insulating tube and comprises a temperature fuse link, a first lead and a second lead, wherein the first lead and the second lead are connected with two ends of the temperature fuse link;
and the insulating piece is arranged between the temperature fuse link and the second lead at intervals so as to enable the second lead to be insulated from the temperature fuse link and the first lead respectively.
2. The composite protector of claim 1, wherein: the resistance wire and the second conductive cap are arranged on the first conductive cap, and the first conductive cap, the resistance wire and the second conductive cap are covered by the protective coating.
3. The composite protector of claim 1, wherein: the melting temperature of the temperature melt is 80-500 ℃.
4. The composite protector of claim 1, wherein: the outer surface of the thermal link is coated with a fluxing agent.
5. The composite protector of claim 1, wherein: the surface of the insulating member in contact with the thermal link is coated with an arc extinguishing agent.
6. The composite protector of claim 1, wherein: the insulating part is a ceramic piece or a glass fiber piece, and the insulating tube is a ceramic tube or a glass fiber tube.
7. The composite protector of claim 1, wherein: the fuse is characterized in that the inside of the insulating tube is provided with an accommodating cavity with at least one end part being opened, the fuse is arranged in the accommodating cavity, and the opening end is packaged by sealing compound.
8. The composite protector of claim 1, wherein: the first conductive cap is a hole cap, and the second conductive cap is a lead cap.
9. The composite protector of claim 1, wherein: the thickness of the insulating part is 0.01-2 mm.
10. A method of making a composite protector according to any one of claims 1 to 9, comprising the steps of:
pressing a cap: pressing the first conductive cap and the second conductive cap at two ends of the insulating tube through a cap pressing machine;
winding: uniformly winding the resistance wire on the outer surface of the insulating tube, and respectively connecting two ends of the resistance wire with a first conductive cap and a second conductive cap;
assembling: bending a second lead of the fuse along the direction of the first lead, placing the second lead into an accommodating cavity of the insulating tube, enabling the first lead to extend out of the first conductive cap, enabling the second lead to be connected with the first conductive cap, and then placing the insulating piece between the second lead and the temperature fuse link;
gluing and sealing: sealing one open end of the insulating tube by using sealing glue to fix the fuse in the insulating tube;
coating: and (4) coating the whole product with a protective coating to obtain the composite protector.
CN202110820979.7A 2021-07-20 2021-07-20 Composite protector and manufacturing method thereof Withdrawn CN113363123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110820979.7A CN113363123A (en) 2021-07-20 2021-07-20 Composite protector and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110820979.7A CN113363123A (en) 2021-07-20 2021-07-20 Composite protector and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN113363123A true CN113363123A (en) 2021-09-07

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CN202110820979.7A Withdrawn CN113363123A (en) 2021-07-20 2021-07-20 Composite protector and manufacturing method thereof

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Country Link
CN (1) CN113363123A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122595A (en) * 2010-01-12 2011-07-13 旭程电子(深圳)有限公司 Arc extinguisher for fuse
US8314677B1 (en) * 2011-11-21 2012-11-20 Ty-Ohm Electronic Works Co., Ltd. Overcurrent protective wire wound resistor
CN206163219U (en) * 2016-07-22 2017-05-10 厦门赛尔特电子有限公司 Novel hot protection type resistor
CN206322662U (en) * 2016-12-23 2017-07-11 东莞市贝特电子科技股份有限公司 A kind of overcurrent protective device
CN210837636U (en) * 2019-12-12 2020-06-23 深圳市良胜电子有限公司 Pressure-resistant explosion-proof over-temperature protection type composite fuse
CN112562945A (en) * 2020-12-22 2021-03-26 东莞市贝特电子科技股份有限公司 Fuse resistor with low surface temperature and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122595A (en) * 2010-01-12 2011-07-13 旭程电子(深圳)有限公司 Arc extinguisher for fuse
US8314677B1 (en) * 2011-11-21 2012-11-20 Ty-Ohm Electronic Works Co., Ltd. Overcurrent protective wire wound resistor
CN206163219U (en) * 2016-07-22 2017-05-10 厦门赛尔特电子有限公司 Novel hot protection type resistor
CN206322662U (en) * 2016-12-23 2017-07-11 东莞市贝特电子科技股份有限公司 A kind of overcurrent protective device
CN210837636U (en) * 2019-12-12 2020-06-23 深圳市良胜电子有限公司 Pressure-resistant explosion-proof over-temperature protection type composite fuse
CN112562945A (en) * 2020-12-22 2021-03-26 东莞市贝特电子科技股份有限公司 Fuse resistor with low surface temperature and preparation method thereof

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