CN213880295U - PTC electric heater and air conditioner - Google Patents
PTC electric heater and air conditioner Download PDFInfo
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- CN213880295U CN213880295U CN202022538246.8U CN202022538246U CN213880295U CN 213880295 U CN213880295 U CN 213880295U CN 202022538246 U CN202022538246 U CN 202022538246U CN 213880295 U CN213880295 U CN 213880295U
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Abstract
The utility model discloses a PTC electric heater and an air conditioner, which comprises a heater core body and a waterproof assembly, wherein the heater core body comprises a PTC heating unit, insulating paper and a metal tube, and the outer surface of the PTC heating unit is wrapped with the insulating paper and is arranged in the metal tube; the waterproof assembly comprises a sealing adhesive layer, an elastic sealing sleeve and bonding adhesive, the sealing adhesive layer is coated at two ends of the heater core body, and the elastic sealing sleeve is arranged at the joint of the heater core body and the external lead. The utility model discloses an introduce the elastic sealing cover, establish the one end at the external wire of coated sealing glue layer with the elastic sealing cover, carry out the secondary seal to the heater core, effectively prevented the infiltration of moisture and air, and the elastic sealing cover is soft, can not restrict swing joint's between external wire and the heater core flexibility, forms effective isolation protection to the junction.
Description
Technical Field
The utility model relates to a heater technical field, concretely relates to PTC electric heater and air conditioner.
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.
Compared with traditional heating wires, electrothermal tubes and far infrared quartz heaters, the PTC electric heater has the advantages of automatic temperature control, wide application voltage range, no open fire, safety, reliability, long service life and the like. Generally, PTC electric heaters require a heater core to be manufactured as a heat generating source: the PTC heater comprises a PTC ceramic heating element, a ceramic plate and a metal electrode plate for electric conduction, wherein the PTC ceramic heating element, the ceramic plate and the metal electrode plate for electric conduction are arranged well, wrapped with a polyimide film (serving as a PTC heater core) and then penetrate into a corresponding aluminum pipe, and the aluminum pipe is subjected to pressing operation by a pressing device such as an oil press or a roller press, so that the heater core and the aluminum pipe are tightly attached, and the thermal resistance is reduced.
In the prior art, the heater core body of the PTC heater is usually sealed by gluing at two ends of the heater core body to prevent air and moisture from entering the heater core body, but in the practical application process, it is gradually found that the use of the gluing at the head and tail ends of the heater core body can not completely stop moisture and air from entering the heater core body of the PTC heater, thereby greatly reducing the safety and durability of the heater core body.
Therefore, there is a need in the art for a PTC electric heater with simple structure and easy installation, which can effectively prevent moisture and air from entering the heater core.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, simple to operate and good PTC electric heater of leakproofness of heater core.
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 PTC electric heater, which comprises a heater core body and a waterproof assembly, wherein the heater core body is a core heating component of the PTC electric heater and comprises a PTC heating unit, insulating paper and a metal tube, the outer surface of the PTC heating unit is wrapped with the insulating paper, and the PTC heating unit wrapped with the insulating paper is arranged in the metal tube; the waterproof assembly comprises a sealing adhesive layer, an elastic sealing sleeve and bonding adhesive, wherein the sealing adhesive layer is coated at two ends of the heater core body, and the elastic sealing sleeve is arranged at the joint of the heater core body and an external lead and is connected with the outer surface of the end part of the heater core body through the bonding adhesive.
The beneficial effect of adopting above-mentioned technical scheme is: the heater core body of the PTC electric heater in the prior art is not tightly sealed and is easy to enter moisture and air, and further the safety and the service life of the PTC electric heater are affected.
As a technical scheme of the utility model further improve, the elastic sealing cover is the silica gel cover, waterproof component still includes silica gel, silica gel fills the silica gel cover with gap department between the heater core.
The beneficial effect of adopting above-mentioned technical scheme is: on the one hand, the silica gel sleeve is economical in cost, simple and easy to obtain on the premise of meeting the use function; on the other hand, the gap between the silica gel sleeve and the heater core body is filled with silica gel, the sealing effect is good, and the requirement of the size matching degree of the caliber of the silica gel sleeve and the outer diameter of the heater core body is reduced.
As the utility model discloses technical scheme's further improvement again, the silica gel cover is equipped with first interface and second interface, first interface cover is established the surface of heater core, the second interface cover is established external conductor's surface, second interface quantity is more than two.
The beneficial effect of adopting above-mentioned technical scheme is: the quantity of second interface is more, helps prescribing a limit to many external conductors alone, and sealed effect is better.
As the utility model discloses technical scheme's further improvement again, waterproof component still includes the thermosetting glue, the thermosetting glue coating is in the second interface of silica gel cover with external conductor's contact surface.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of thermosetting glue, strengthen sealed once more in one side of silica gel cover and external conductor, and make full use of the thermosetting glue the sealed characteristic of solidification under the condition of being heated, when normal atmospheric temperature suit silica gel cover, thermosetting glue does not influence the change of the contact position of external conductor and second kneck because of external conductor's bending causes, the heater has assembled and has begun to use the work, the relative position of external conductor and heater core is unchangeable, give off the heat at the heater core and promoted ambient temperature, when the temperature risees, thermosetting glue solidification seals the clearance between the second interface of external conductor and silica gel cover, thereby further strengthened the sealed effect of silica gel cover.
As the utility model discloses technical scheme's further improvement again, the tubular metal resonator is the aluminum pipe.
The beneficial effect of adopting above-mentioned technical scheme is: when the metal pipe is an aluminum pipe, the advantages of light weight and good heat conducting property of the aluminum pipe are fully utilized, the overall weight of the PTC electric heater is favorably reduced, and the heat dissipation rate of the PTC electric heater is accelerated.
As a further improvement of the technical scheme of the utility model, still include the reinforcement subassembly, the reinforcement subassembly with the cooperation of heater core sets up for improve the physical strength of heater core.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the reinforcing component is beneficial to improving the physical strength of the heater core.
As a further improvement of the technical scheme of the utility model, strengthen the subassembly and include strengthening rib and fixed baseplate, the strengthening rib is followed the length direction of tubular metal resonator is laid, and passes through fixed baseplate with heater core fixed connection.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the reinforcing ribs can effectively enhance the bending strength of the heater core body, particularly the arrangement of the reinforcing ribs on the heater core body with overlarge length-diameter ratio has more obvious effect, and the service life of the PTC electric heater is prolonged.
As the utility model discloses technical scheme's further improvement again, fixed baseplate includes first base, second base and third base, first base and second base are established respectively the both ends of heater core, the third base is established the middle part of heater core, first base, second base and third base with the strengthening rib is fixed through threaded connection spare respectively.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of third base is connected fixedly heater core and strengthening rib from the middle part position, has further strengthened the integration degree of heater core and strengthening rib, and it is better to strengthen the effect.
As the technical scheme of the utility model the further improvement again, be equipped with waist shape hole on the strengthening rib, the length direction in waist shape hole with the length direction of tubular metal resonator is unanimous.
The beneficial effect of adopting above-mentioned technical scheme is: the setting in waist type hole helps adjusting fixed base's fixed position for fixed position is more nimble, satisfies the fixed demand of strengthening rib and heater core under the different situation.
On the other hand, the utility model discloses an air conditioner is further disclosed, including any one of above-mentioned technical scheme PTC electric heater.
The beneficial effect of adopting above-mentioned technical scheme is: including any one above-mentioned technical scheme PTC electric heater's air conditioner, all can prevent effectively that moisture and air from getting into inside the heater core, air conditioner heating performance is stable, durable and safe and reliable, can show reduction customer later maintenance cost.
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 sectional view of a PTC electric heater according to the present invention.
Fig. 2 is a schematic view of the elastic rubber sleeve of the present invention.
Fig. 3 is a schematic cross-sectional view of the heater core of fig. 2 taken along the line a-a.
Fig. 4 is a schematic view of another PTC electric heater according to the present invention.
The corresponding part names indicated by the numbers in the figures are as follows:
an external lead 01; a heater core 1; a PTC heating unit 11; an insulating paper 12; a metal tube 13; a waterproof assembly 2; a sealant layer 21; an elastic sealing sleeve 22; a silica gel sleeve 221; a first interface 222; a second interface 223; adhesive glue 23; silica gel 24; thermosetting adhesive 25; a reinforcement member 3; a reinforcing rib 31; a waist-shaped hole 311; a fixed base 32; a first base 321; a second base 322; and a third base 323.
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:
on one hand, in some embodiments of the present invention, as shown in fig. 1 and 3, a PTC electric heater is disclosed, which comprises a heater core 1 and a waterproof component 2, wherein the heater core 1 is a core heating component of the PTC electric heater, and comprises a PTC heating unit 11, insulating paper 12 and a metal tube 13, the outer surface of the PTC heating unit 11 is wrapped with the insulating paper 12, and the PTC heating unit 11 wrapped with the insulating paper 12 is embedded in the metal tube 13; the waterproof assembly 2 comprises a sealing adhesive layer 21, an elastic sealing sleeve 22 and a bonding adhesive 23, wherein the sealing adhesive layer 21 is coated at two ends of the heater core body 1, the elastic sealing sleeve 22 is arranged at the joint of the heater core body 1 and the external lead 01, and is connected with the outer surface of the end part of the heater core body 1 through the bonding adhesive 23.
The beneficial effect of adopting above-mentioned technical scheme is: the heater core body of the PTC electric heater in the prior art is not tightly sealed, moisture and air easily enter the heater core body, and further the safety and the service life of the PTC electric heater are affected.
In other embodiments of the present invention, as shown in fig. 1, the elastic sealing sleeve 22 is a silica gel sleeve 221, the waterproof assembly 2 further includes a silica gel 24, and the silica gel 24 is filled in the gap between the silica gel sleeve and the heater core 1.
The beneficial effect of adopting above-mentioned technical scheme is: on the one hand, the silica gel sleeve is economical in cost, simple and easy to obtain on the premise of meeting the use function; on the other hand, the gap between the silica gel sleeve and the heater core body is filled with silica gel, the sealing effect is good, and the requirement of the size matching degree of the caliber of the silica gel sleeve and the outer diameter of the heater core body is reduced.
In other embodiments of the present invention, as shown in fig. 1 and 2, the silica gel cover 221 is provided with a first interface 222 and a second interface 223, the first interface 222 is disposed on the outer surface of the heater core 1, the second interface 223 is disposed on the outer surface of the external lead 01, and the number of the second interfaces 223 is two or more.
The beneficial effect of adopting above-mentioned technical scheme is: the quantity of second interface is more, helps prescribing a limit to many external conductors alone, and sealed effect is better.
In other embodiments of the present invention, as shown in fig. 1, the waterproof assembly 2 further includes a thermosetting adhesive 25, and the thermosetting adhesive 25 is coated on the contact surface between the second interface 223 of the silica gel cover 221 and the external lead 01.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of thermosetting glue, strengthen sealed once more in one side of silica gel cover and external conductor, and make full use of the thermosetting glue the sealed characteristic of solidification under the condition of being heated, when normal atmospheric temperature suit silica gel cover, thermosetting glue does not influence the change of the contact position of external conductor and second kneck because of external conductor's bending causes, the heater has assembled and has begun to use the work, the relative position of external conductor and heater core is unchangeable, give off the heat at the heater core and promoted ambient temperature, when the temperature risees, thermosetting glue solidification seals the clearance between the second interface of external conductor and silica gel cover, thereby further strengthened the sealed effect of silica gel cover.
In other embodiments of the present invention, the metal pipe 13 is an aluminum pipe.
The beneficial effect of adopting above-mentioned technical scheme is: when the metal pipe is an aluminum pipe, the advantages of light weight and good heat conducting property of the aluminum pipe are fully utilized, the overall weight of the PTC electric heater is favorably reduced, and the heat dissipation rate of the PTC electric heater is accelerated.
In other embodiments of the present invention, as shown in fig. 4, the heater core body further includes a reinforcing component 3, and the reinforcing component 3 is disposed in cooperation with the heater core body 11 for improving the physical strength of the heater core body 1.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the reinforcing component is beneficial to improving the physical strength of the heater core.
In other embodiments of the present invention, as shown in fig. 4, the reinforcing member 3 includes a reinforcing rib 31 and a fixing base 32, and the reinforcing rib 31 is laid along the length direction of the metal pipe 13 and is fixedly connected to the heater core 1 through the fixing base 32.
The beneficial effect of adopting above-mentioned technical scheme is: the introduction of the reinforcing ribs can effectively enhance the bending strength of the heater core body, particularly the arrangement of the reinforcing ribs on the heater core body with overlarge length-diameter ratio has more obvious effect, and the service life of the PTC electric heater is prolonged.
In other embodiments of the present invention, as shown in fig. 4, the fixing base 32 includes a first base 321, a second base 322 and a third base 323, the first base 321 and the second base 322 are respectively disposed at two ends of the heater core 1, the third base 323 is disposed at the middle of the heater core, and the first base 321, the second base 322 and the third base 323 are respectively fixed to the reinforcing rib 31 through a screw connector.
The beneficial effect of adopting above-mentioned technical scheme is: the setting of third base is connected fixedly heater core and strengthening rib from the middle part position, has further strengthened the integration degree of heater core and strengthening rib, and it is better to strengthen the effect.
In another embodiment of the present invention, as shown in fig. 4, the reinforcing rib 31 is provided with a waist-shaped hole 311, and the length direction of the waist-shaped hole 311 is identical to the length direction of the metal pipe 13.
The beneficial effect of adopting above-mentioned technical scheme is: the setting in waist type hole helps adjusting fixed base's fixed position for fixed position is more nimble, satisfies the fixed demand of strengthening rib and heater core under the different situation.
On the other hand, in other embodiments of the present invention, an air conditioner is further disclosed, which includes the PTC electric heater according to any one of the above technical solutions.
The beneficial effect of adopting above-mentioned technical scheme is: including any one above-mentioned technical scheme PTC electric heater's air conditioner, all can prevent effectively that moisture and air from getting into inside the heater core, air conditioner heating performance is stable, durable and safe and reliable, can show reduction customer later maintenance cost.
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 PTC electric heater is characterized in that the PTC electric heater comprises a heater core body and a waterproof component,
the heater core body is a core heating component of the PTC electric heater and comprises a PTC heating unit, insulating paper and a metal tube, wherein the insulating paper is wrapped on the outer surface of the PTC heating unit, and the PTC heating unit wrapped with the insulating paper is arranged in the metal tube;
the waterproof assembly comprises a sealing adhesive layer, an elastic sealing sleeve and bonding adhesive, wherein the sealing adhesive layer is coated at two ends of the heater core body, and the elastic sealing sleeve is arranged at the joint of the heater core body and an external lead and is connected with the outer surface of the end part of the heater core body through the bonding adhesive.
2. The PTC electric heater according to claim 1, wherein the elastic sealing sleeve is a silica gel sleeve, and the waterproof assembly further comprises silica gel filled in a gap between the silica gel sleeve and the heater core body.
3. The PTC electric heater according to claim 2, wherein the silicone sheath has a first interface and a second interface, the first interface is disposed on the outer surface of the heater core, the second interface is disposed on the outer surface of the external lead, and the number of the second interfaces is two or more.
4. The PTC electric heater according to claim 3, wherein the waterproof assembly further comprises thermosetting adhesive, and the thermosetting adhesive is coated on a contact surface between the second interface of the silicone sleeve and the external lead.
5. The PTC electric heater according to claim 1, wherein the metal tube is an aluminum tube.
6. The PTC electric heater according to claim 5, further comprising a reinforcing member disposed in cooperation with the heater core for improving the physical strength of the heater core.
7. The PTC electric heater according to claim 6, wherein the reinforcing member includes reinforcing ribs and a fixing base, the reinforcing ribs being laid along a length direction of the metal pipe and fixedly connected to the heater core through the fixing base.
8. The PTC electric heater according to claim 7, wherein the fixing bases include a first base, a second base, and a third base, the first base and the second base are respectively provided at both ends of the heater core, the third base is provided at a middle portion of the heater core, and the first base, the second base, and the third base and the reinforcing rib are respectively fixed by screw-threaded connectors.
9. The PTC electric heater according to claim 8, wherein the reinforcing rib is provided with a kidney-shaped hole, and a length direction of the kidney-shaped hole coincides with a length direction of the metal tube.
10. An air conditioner characterized by comprising the PTC electric heater according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538246.8U CN213880295U (en) | 2020-11-05 | 2020-11-05 | PTC electric heater and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022538246.8U CN213880295U (en) | 2020-11-05 | 2020-11-05 | PTC electric heater and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN213880295U true CN213880295U (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022538246.8U Active CN213880295U (en) | 2020-11-05 | 2020-11-05 | PTC electric heater and air conditioner |
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| CN (1) | CN213880295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113905467A (en) * | 2021-11-04 | 2022-01-07 | 苏州法密利电子科技有限公司 | Improved PTC heater and preparation method thereof |
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2020
- 2020-11-05 CN CN202022538246.8U patent/CN213880295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113905467A (en) * | 2021-11-04 | 2022-01-07 | 苏州法密利电子科技有限公司 | Improved PTC heater and preparation method thereof |
| CN113905467B (en) * | 2021-11-04 | 2023-08-01 | 苏州法密利电子科技有限公司 | Improved PTC heater and preparation method thereof |
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