CN213880287U - A mounting structure and PTC electric heater for fuse - Google Patents
A mounting structure and PTC electric heater for fuse Download PDFInfo
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- CN213880287U CN213880287U CN202022808054.4U CN202022808054U CN213880287U CN 213880287 U CN213880287 U CN 213880287U CN 202022808054 U CN202022808054 U CN 202022808054U CN 213880287 U CN213880287 U CN 213880287U
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- mounting structure
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- elastic
- electric heater
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Abstract
The utility model discloses a mounting structure for a fuse and a PTC electric heater, which comprises a fuse, a wire harness and a base, wherein the fuse is connected with the wire harness in series, and the outer diameter of the fuse is larger than that of the wire harness; be equipped with card portion on the base, card portion is including card chamber and bayonet socket, and the width of bayonet socket is greater than the external diameter of pencil, and is not more than the external diameter of fuse, and the card chamber is used for holding and fixed fuse. The utility model discloses a set up the card portion of blocking on the base, on the one hand, the pencil that the fuse is located is connected with plug terminal or PTC heating core lead-out wire earlier, and the card is gone into in the card intracavity of base through the bayonet socket card after, and convenient operation is swift, and the installation is nimble; on the other hand, the base is provided with the clamping part, and a proper clamping position is selected according to the length of the wire harness, so that the wire harness does not need to penetrate through the whole length or width of the base, the material is saved, and the cost is obviously reduced.
Description
Technical Field
The utility model relates to a heater technical field, concretely relates to a mounting structure and PTC electric heater for fuse.
Background
Due to the special positive temperature coefficient characteristic, the PTC electric heater product is widely applied to heating in the field of household appliances, such as air conditioner auxiliary heating, a fan heater, a bath heater and the like; the defrosting of the traditional fuel oil automobile, the heating in the new energy automobile, the battery heat management and the like, and the application range of the PTC electric heater is continuously expanded in the field of high-power heating.
In order to protect the PTC electric heater for a long-term stable operation, protection components are generally provided for the PTC electric heater, and an overcurrent protection fuse is one of representative protection components.
In the prior art, the fuse of the base of the existing PTC electric heater is arranged in the mounting hole in the base, and the upper part of the mounting hole is of a closed structure. The wiring harness where the fuse is located can only penetrate through the fuse mounting hole and then is connected with the plug-in terminal or the PTC electric heater core leading-out wire, so that the assembly efficiency of the PTC electric heater is affected.
Therefore, there is a need in the art for a mounting structure with simple structure, flexible and efficient fuse installation, and easy detachment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, convenient operation, pencil wiring process are nimble, the high-efficient and convenient mounting structure of dismantlement of fuse installation.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
on one hand, the utility model discloses a mounting structure for a fuse, which comprises a fuse, a wire harness and a base, wherein the fuse is connected with the wire harness in series, and the outer diameter of the fuse is larger than that of the wire harness; the base is installed at the end portion of the core body of the electric heater, a clamping portion is arranged on the base and comprises a clamping cavity and a clamping opening, the width of the clamping opening is larger than the outer diameter of the wiring harness and not larger than the outer diameter of the fuse, and the clamping cavity is used for containing and fixing the fuse.
The beneficial effect of adopting above-mentioned technical scheme is: the problems of inconvenience in installation, fixing of installation sequence and complex later maintenance and disassembly of a fuse in the PTC electric heater in the prior art are fully considered, the clamping part is arranged on the base, and the width of the bayonet of the clamping part is limited, so that on one hand, a wiring harness where the fuse is located can be connected with the plug-in terminal or the PTC heating core leading-out wire firstly and then clamped into the bayonet cavity of the base through the bayonet, the operation is convenient and rapid, the installation procedure is flexible, and wiring is not required to be performed by penetrating through the installation hole firstly as in the prior art; on the other hand, the base is provided with the clamping part, and a proper clamping position is selected according to the length of the wire harness, so that the wire harness does not need to penetrate through the whole length or width of the base, the material is saved, and the cost is effectively reduced.
As a further improvement of the technical scheme of the utility model, the card chamber is for lining up the recess on the base.
The beneficial effect of adopting above-mentioned technical scheme is: the clamping cavity is arranged into a groove, so that additional auxiliary materials are not needed, the processing is simple and convenient, and the cost is lower.
As the utility model discloses technical scheme's further improvement again, the bayonet socket is the elasticity bayonet socket, the width of elasticity bayonet socket slightly is less than the external diameter of fuse.
The beneficial effect of adopting above-mentioned technical scheme is: the width of elasticity bayonet socket slightly is less than the setting of fuse external diameter, and the elasticity of make full use of elasticity bayonet socket for the fuse card can not fall out in the recess.
As the utility model discloses technical scheme's further improvement again, the material of base is the PPS plastic.
The beneficial effect of adopting above-mentioned technical scheme is: the PPS plastic is used as the material of the base, and the excellent comprehensive properties of high temperature resistance, corrosion resistance, toughness and the like of the PPS plastic are fully utilized.
As the utility model discloses technical scheme's further improvement again, the base still includes the elasticity cap gasket, the top both sides of recess are equipped with L type groove, two respectively the elasticity cap gasket is fixed respectively L type inslot, and two the face of the mutual contact of elasticity cap gasket is located directly over the recess.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of elasticity bonnet pad, the back that goes into at the fuse card plays the effect that shelters from the protection to the fuse, prevents that the fuse from receiving the destruction of outside foreign matter in open recess.
As a further improvement of the technical solution of the present invention, the elastic covering pad includes an upper surface, a lower surface and side surfaces, the upper surface is a surface facing away from the groove, the lower surface is a surface facing the groove, and the side surfaces are surfaces of two elastic covering pads that are in contact with each other; the side surface of one elastic covering pad is a first inclined surface with an included angle of less than 90 degrees with the upper surface, and the side surface of the other elastic covering pad is a second inclined surface correspondingly arranged with the first inclined surface.
The beneficial effect of adopting above-mentioned technical scheme is: the contact surface of two elasticity bent gaskets sets up the inclined plane of matching, and on the one hand the laminating is inseparabler between the contact surface, and on the other hand, compare with straight face, the fuse business turn over recess is easily operated, can prevent effectively that the bending of an elasticity bent gasket from to the interference of another piece.
As a technical scheme of the utility model improve still further, card portion still includes snap ring, snap ring establishes the bottom of recess, through pressing snap ring is in order to realize the staple bolt in turn the fuse reaches to loosen the fuse.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of snap ring can accomodate the fuse or take out the fuse through pressing, and not only convenient and fast more, and the solid reliable and stable nature of fuse card is showing the reinforcing.
As the utility model discloses technical scheme's further improvement again, the snap ring pass through sliding connection subassembly with the bottom sliding connection of recess.
The beneficial effect of adopting above-mentioned technical scheme is: the elastic clamping ring is arranged to be in sliding connection with the bottom of the groove, the clamping position can be adjusted according to the actual position of the fuse in a wire harness, the clamping is more flexible, and the application range of the installation structure of the fuse is further widened.
As the technical proposal of the utility model is further improved, the inner surface of the elastic snap ring is covered with an anti-slip layer.
The beneficial effect of adopting above-mentioned technical scheme is: the inner surface of the elastic clamping ring is provided with the anti-slip layer, so that the fuse can be effectively prevented from moving in the elastic clamping ring, and the clamping firmness of the elastic clamping ring is further improved.
On the other hand, the utility model discloses still further PTC electric heater, include any one of above-mentioned technical scheme be used for the mounting structure of fuse.
The beneficial effect of adopting above-mentioned technical scheme is: the PTC electric heater comprises any one of the installation structures for the fuse, so that the connection mode that the PTC electric heater has to penetrate through the installation hole and then is connected with the plug-in terminal or the core leading-out wire of the PTC electric heater in the prior art can be avoided, the wiring harness connection is not restricted by the installation of the fuse, the PTC electric heater is more flexible and convenient, and the assembly efficiency of the PTC electric heater is obviously improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the installation structure of the fuse of the present invention.
Fig. 2 is a schematic sectional view of the mounting structure of the fuse in fig. 1 in a direction a-a.
Fig. 3 is a partially enlarged schematic view of a mounting structure at I in fig. 2.
Fig. 4 is a partially enlarged schematic view of another mounting structure at I in fig. 2.
Fig. 5 is a partially enlarged schematic view of still another mounting structure at I in fig. 2.
The corresponding part names indicated by the numbers in the figures are as follows:
a core body 01; a fuse 1; a wire harness 2; a base 3; a clamping portion 31; a card cavity 311; a groove 3111; a bayonet 312; an elastic bayonet 3121; a snap ring 313; an anti-slip layer 3131; a slide connection assembly 314; an elastic covering pad 32; an upper surface 321; a lower surface 322; side 323; a first inclined surface 3231; a second inclined surface 3232; an L-shaped groove 33.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In order to realize the utility model discloses a purpose, the utility model provides a technical scheme does:
in one aspect, in some embodiments of the present invention, as shown in fig. 1-3, a mounting structure for a fuse is disclosed, including a fuse 1, a wire harness 2, and a base 3, the fuse 1 being connected in series with the wire harness 2, and an outer diameter of the fuse 1 being larger than an outer diameter of the wire harness 2; the base 3 is installed at the tip of the core 01 of the electric heater, and the base 3 is provided with the clamping part 31, and the clamping part 31 includes a clamping cavity 311 and a clamping opening 312, and the width of the clamping opening 312 is greater than the outer diameter of the wiring harness 2 and is not greater than the outer diameter of the fuse 1, and the clamping cavity 311 is used for accommodating and fixing the fuse.
The beneficial effect of adopting above-mentioned technical scheme is: the problems of inconvenience in installation, fixing of installation sequence and complex later maintenance and disassembly of a fuse in the PTC electric heater in the prior art are fully considered, the clamping part is arranged on the base, and the width of the bayonet of the clamping part is limited, so that on one hand, a wiring harness where the fuse is located can be connected with the plug-in terminal or the PTC heating core leading-out wire firstly and then clamped into the bayonet cavity of the base through the bayonet, the operation is convenient and rapid, the installation procedure is flexible, and wiring is not required to be performed by penetrating through the installation hole firstly as in the prior art; on the other hand, the base is provided with the clamping part, a proper clamping position can be selected according to the length of the wiring harness, the wiring harness does not need to penetrate through the whole length or width of the base, materials are saved, and cost is effectively reduced.
In other embodiments of the present invention, as shown in fig. 3, the card cavity 311 is a groove 3111 penetrating the base 3.
The beneficial effect of adopting above-mentioned technical scheme is: the clamping cavity is arranged into a groove, so that additional auxiliary materials are not needed, the processing is simple and convenient, and the cost is lower.
In other embodiments of the present invention, as shown in fig. 3, the bayonet 312 is an elastic bayonet 3121, and the width of the elastic bayonet 3121 is slightly smaller than the outer diameter of the fuse 1.
The beneficial effect of adopting above-mentioned technical scheme is: the width of elasticity bayonet socket slightly is less than the setting of fuse external diameter, and the elasticity of make full use of elasticity bayonet socket for the fuse card can not fall out in the recess.
In other embodiments of the present invention, the base 3 is made of PPS plastic.
The beneficial effect of adopting above-mentioned technical scheme is: the PPS plastic is used as the material of the base, and the excellent comprehensive properties of high temperature resistance, corrosion resistance, toughness and the like of the PPS plastic are fully utilized.
In other embodiments of the present invention, as shown in fig. 4, the base 3 further includes an elastic cover pad 32, two sides of the top of the groove 3111 are respectively provided with an L-shaped groove 33, the two elastic cover pads 32 are respectively fixed in the L-shaped grooves 33, and the surfaces of the two elastic cover pads 32 contacting each other are located right above the groove 3111.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of elasticity bonnet pad, the back that goes into at the fuse card plays the effect that shelters from the protection to the fuse, prevents that the fuse from receiving the destruction of outside foreign matter in open recess.
In other embodiments of the present invention, as shown in fig. 4, the elastic cap pad 32 includes an upper surface 321, a lower surface 322 and a side 323, wherein the upper surface 321 is a surface facing away from the groove 3111, the lower surface 322 is a surface facing the groove 3111, and the side 323 is a surface of the two elastic cap pads 32 contacting each other; the side 323 of one piece of resilient cap pad is a first inclined surface 3231 at an angle α to the lower surface 322, where α is less than 90 °; the side 323 of the other elastic covering pad is a second inclined surface 3232 corresponding to the first inclined surface 3231, an included angle between the second inclined surface 3232 and the upper surface 321 is β, and α is equal to β.
The beneficial effect of adopting above-mentioned technical scheme is: the contact surface of two elasticity bent gaskets sets up the inclined plane of matching, and on the one hand the laminating is inseparabler between the contact surface, and on the other hand, compare with straight face, the fuse business turn over recess is easily operated, can prevent effectively that the bending of an elasticity bent gasket from to the interference of another piece.
In other embodiments of the present invention, as shown in fig. 5, the fastening portion 31 further includes an elastic snap ring 313, the elastic snap ring 313 is disposed at the bottom of the groove 3111, and the elastic snap ring 313 is pressed to alternately realize the hoop fuse 1 and loosen the fuse 1.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of snap ring can accomodate the fuse or take out the fuse through pressing, and not only convenient and fast more, and the solid reliable and stable nature of fuse card is showing the reinforcing.
In other embodiments of the present invention, as shown in fig. 5, the resilient snap ring 313 is slidably connected to the bottom of the groove 3111 through the sliding connection assembly 314.
The beneficial effect of adopting above-mentioned technical scheme is: the elastic clamping ring is arranged to be in sliding connection with the bottom of the groove, the clamping position can be adjusted according to the actual position of the fuse in a wire harness, the clamping is more flexible, and the application range of the installation structure of the fuse is further widened.
In other embodiments of the present invention, as shown in fig. 5, the inner surface of the elastic clasp 313 is coated with an anti-slip layer 3131.
The beneficial effect of adopting above-mentioned technical scheme is: the inner surface of the elastic clamping ring is provided with the anti-slip layer, so that the fuse can be effectively prevented from moving in the elastic clamping ring, and the clamping firmness of the elastic clamping ring is further improved.
In other embodiments of the present invention, there is also disclosed a PTC electric heater including the mounting structure for a fuse according to any one of the above technical solutions.
The beneficial effect of adopting above-mentioned technical scheme is: the PTC electric heater comprises any one of the installation structures for the fuse, so that the connection mode that the PTC electric heater has to penetrate through the installation hole and then is connected with the plug-in terminal or the core leading-out wire of the PTC electric heater in the prior art can be avoided, the wiring harness connection is not restricted by the installation of the fuse, the PTC electric heater is more flexible and convenient, and the assembly efficiency of the PTC electric heater is obviously improved.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. A mounting structure for a fuse, characterized by comprising a fuse, a wire harness and a base,
the fuse is connected with the wiring harness in series, and the outer diameter of the fuse is larger than that of the wiring harness;
the base is installed at the end portion of the core body of the electric heater, a clamping portion is arranged on the base and comprises a clamping cavity and a clamping opening, the width of the clamping opening is larger than the outer diameter of the wiring harness and not larger than the outer diameter of the fuse, and the clamping cavity is used for containing and fixing the fuse.
2. A mounting structure for a fuse as claimed in claim 1, wherein the card chamber is a groove penetrating the base.
3. A mounting structure for a fuse as set forth in claim 2, wherein said bayonet is an elastic bayonet having a width slightly smaller than an outer diameter of the fuse.
4. A mounting structure for a fuse as claimed in claim 3, wherein the base is made of PPS plastic.
5. A mounting structure for a fuse as claimed in claim 4, wherein the base further includes elastic cover pads, L-shaped grooves are respectively formed in both sides of the top of the groove, the two elastic cover pads are respectively fixed in the L-shaped grooves, and the surfaces of the two elastic cover pads, which are in contact with each other, are located right above the groove.
6. A mounting structure for a fuse as recited in claim 5, wherein said elastic covering pad includes an upper surface, a lower surface and a side surface, said upper surface being a surface facing away from said recess, said lower surface being a surface facing toward said recess, said side surface being a surface of two pieces of said elastic covering pad contacting each other; the side surface of one elastic covering pad is a first inclined surface with an included angle of less than 90 degrees with the upper surface, and the side surface of the other elastic covering pad is a second inclined surface correspondingly arranged with the first inclined surface.
7. The mounting structure for a fuse according to claim 2, wherein the catching portion further includes an elastic snap ring provided at a bottom of the groove, and the holding and releasing of the fuse are alternately performed by pressing the elastic snap ring.
8. A mounting structure for a fuse as claimed in claim 7, wherein the resilient snap ring is slidably connected to the bottom of the groove by a sliding connection assembly.
9. A mounting structure for a fuse as claimed in claim 8, wherein an inner surface of the snap ring is coated with a non-slip layer.
10. A PTC electric heater comprising the mounting structure for a fuse set forth in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808054.4U CN213880287U (en) | 2020-11-27 | 2020-11-27 | A mounting structure and PTC electric heater for fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022808054.4U CN213880287U (en) | 2020-11-27 | 2020-11-27 | A mounting structure and PTC electric heater for fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213880287U true CN213880287U (en) | 2021-08-03 |
Family
ID=77064522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022808054.4U Active CN213880287U (en) | 2020-11-27 | 2020-11-27 | A mounting structure and PTC electric heater for fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213880287U (en) |
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2020
- 2020-11-27 CN CN202022808054.4U patent/CN213880287U/en active Active
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