CN204721623U - Efficient high-strength PTC electric heater aluminium heat sink strip - Google Patents

Efficient high-strength PTC electric heater aluminium heat sink strip Download PDF

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Publication number
CN204721623U
CN204721623U CN201520306992.0U CN201520306992U CN204721623U CN 204721623 U CN204721623 U CN 204721623U CN 201520306992 U CN201520306992 U CN 201520306992U CN 204721623 U CN204721623 U CN 204721623U
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China
Prior art keywords
aluminium
heat sink
sink strip
corrugated plate
electric heater
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CN201520306992.0U
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Chinese (zh)
Inventor
郑进军
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ZHENJIANG DONGFANG ELECTRIC HEATING CO Ltd
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ZHENJIANG DONGFANG ELECTRIC HEATING CO Ltd
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Abstract

The utility model discloses a kind of efficient high-strength PTC electric heater aluminium heat sink strip, comprise aluminium corrugated plate and upper and lower aluminium chip, the snake type bending of described aluminium corrugated plate to be longitudinal terminal surface be U-shaped ripple, the upper and lower surface of described aluminium corrugated plate with between described upper and lower aluminium chip for some contact.The utility model has the advantages that the aluminium heat sink strip for same outside specification, by the improvement to aluminium corrugated plate structure, add heat exchange area, the heat exchange efficiency of at least 10% can be improved, add the contact area of aluminium corrugated plate and aluminium chip simultaneously, make the compression strength of aluminium heat sink strip improve at least 15%, change the contact shape of aluminium corrugated plate and aluminium chip, make degree of disturbing the at most only 1.9mm of aluminium heat sink strip, aluminium heat sink strip overall construction intensity is high.

Description

Efficient high-strength PTC electric heater aluminium heat sink strip
Technical field
The utility model relates to heat exchange element, particularly a kind of aluminium heat sink strip of PTC electric heater.
Background technology
PTC electric heater, adopt PTC ceramic heating element and aluminium heat sink strip composition, being mainly used in air conditioner, hot air curtain device, dehumidifier, drying machine, dryer, warm-air drier, automobile etc. needs to provide on the equipment of warm braw.
PTC electric heater has following distinguishing feature: 1, heat up rapidly, can autocontrol temperature, long service life when meeting fan trouble; 2, the voltage scope of application is wide, can design as required between 12V ~ 380V; 3, design is convenient, can from small-power to high-power any design, and profile also can design on request; 4, do not burn, safe and reliable.
PTC electric heater has following remarkable advantage: the rapid aluminum strip that 1, generates heat is compacter, and thermal effect is higher; 2, health environment-friendly gluing-free is more healthy; 3, the durable non-oxidation of overlength, long service life.
How to improve the heat exchange efficiency of PTC electric heater, be to its continuous one of main purpose of upgrading of research and development, usually seek solution route from the aspect such as material behavior, heat exchange area, to obtain compact conformation, the small and exquisite but product that heat exchange efficiency is high.But due to the occasion of its application, often along with the situation of vibration, the stability of structural strength to performance of product has material impact, it is therefore also an important design objective.
The attached aluminium heat sink strip structural front view that Figure 1 shows that existing PTC electric heater, the attached aluminium heat sink strip structural upright schematic diagram that Figure 2 shows that wherein, the linear pattern bending of aluminium corrugated plate to be longitudinal terminal surface be V-arrangement ripple, be some linear linear contact lay between upper surface 1, lower surface 2 and upper aluminum core sheet 3, lower aluminium chip 4, aluminium heat sink strip is poor effect on compression strength, counter-bending deformation performance, and bulk strength is inadequate.
Utility model content
Utility model object: for the problems referred to above, the purpose of this utility model is to provide the PTC electric heater aluminium heat sink strip that a kind of structural strength is high, heat exchange efficiency is high, meets the double requirements of heat radiation and structure.
Technical scheme: a kind of efficient high-strength PTC electric heater aluminium heat sink strip, comprise aluminium corrugated plate and upper and lower aluminium chip, the snake type bending of described aluminium corrugated plate to be longitudinal terminal surface be U-shaped ripple, the upper and lower surface of described aluminium corrugated plate with between described upper and lower aluminium chip for some contact.
Be arc or linear bottom described its U-shaped of U-shaped ripple, contact with tube wall forming surface bottom U-shaped, increase lifting surface area, improve the compression strength of aluminium heat sink strip.The simultaneously wavy and snake type bending of U-shaped adds heat exchange area, improves heat exchange efficiency.
Its snake type bent angle of described snake type bending is at least one, and the snake type bent angle of each bending contacts with aluminium chip forming curves shape face, improves the fold resistance of aluminium heat sink strip, reduces flexural deformation.
Its snake type bent angle of described snake type bending is 60 ~ 120 °, and best is 75 °, 90 °, 105 °.
Beneficial effect: compared with prior art, the utility model has the advantages that the aluminium heat sink strip for same outside specification, by the improvement to aluminium corrugated plate structure, add heat exchange area, the heat exchange efficiency of at least 10% can be improved, add the contact area of aluminium corrugated plate and aluminium chip simultaneously, the compression strength of aluminium heat sink strip is made to improve at least 15%, change the contact shape of aluminium corrugated plate and aluminium chip, make degree of disturbing the at most only 1.9mm of aluminium heat sink strip, aluminium heat sink strip overall construction intensity is high.
Accompanying drawing explanation
Fig. 1 is the aluminium heat sink strip structural front view of existing PTC electric heater;
Fig. 2 is the aluminium corrugated plate structural upright schematic diagram in Fig. 1;
Fig. 3 is the utility model aluminium heat sink strip structural front view;
Fig. 4 is the aluminium corrugated plate structural upright schematic diagram in Fig. 3;
Fig. 5 is the vertical view of Fig. 3;
In figure, arrow is depicted as Impact direction.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As shown in accompanying drawing 3,4, a kind of efficient high-strength PTC electric heater aluminium heat sink strip, comprises aluminium corrugated plate 1, upper aluminum core sheet 2, lower aluminium chip 3.
The snake type bending of aluminium corrugated plate 1 to be longitudinal terminal surface be U-shaped ripple, specifically, its longitudinal terminal surface is continuous print U-shaped ripple, is arc or linear bottom U-shaped, and its transverse end surface is some snake types, and each snake type has at least one bent angle 6.The transverse end surface of aluminium corrugated plate 1, i.e. upper surface 4, lower surface 5, and form some respectively between upper aluminum core sheet 2, lower aluminium chip 3 and contact.Bent angle 6 is 60 ~ 120 °, and best is 75 ° or 90 ° or 105 °.
The utility model design feature is: first, what formed with aluminium chip bottom the U-shaped of aluminium corrugated plate is that face contacts, but not linear contact lay, add lifting surface area, syndeton is more firm, aluminium heat sink strip is as shown in Figure 3 stressed, and under 0.3MPa, 0.45MPa pressure, compression strength all at least can improve 15%; Second, the snake type surface of aluminium corrugated plate, what formed with aluminium chip is shaped form face contact shape, compare common linear linear contact lay, contact-making surface is stablized, and aluminium heat sink strip flexural loading as shown in Figure 5, under 1MPa pressure, degree of disturbing is reduced to maximum 1.9mm by 3mm, significantly improves the counter-bending deformation performance of aluminium heat sink strip; 3rd, U-shaped ripple and snake type structure, all add heat exchange area, and under identical aluminium heat sink strip external dimensions, heat exchange efficiency improves at least 10%, in other words, under same heat exchange efficiency, can reduce the consumption of aluminium ripple strip material.

Claims (5)

1. an efficient high-strength PTC electric heater aluminium heat sink strip, comprise aluminium corrugated plate (1) and upper and lower aluminium chip (2,3), it is characterized in that: the snake type bending of described aluminium corrugated plate (1) to be longitudinal terminal surface be U-shaped ripple, the upper and lower surface (4,5) of described aluminium corrugated plate (1) with between described upper and lower aluminium chip (2,3) for some contact.
2. efficient high-strength PTC electric heater aluminium heat sink strip according to claim 1, is characterized in that: be arc or linear bottom described its U-shaped of U-shaped ripple.
3. efficient high-strength PTC electric heater aluminium heat sink strip according to claim 1, is characterized in that: its snake type bent angle (6) of described snake type bending is at least one.
4. efficient high-strength PTC electric heater aluminium heat sink strip according to claim 3, is characterized in that: described bent angle (6) is 60 ~ 120 °.
5. efficient high-strength PTC electric heater aluminium heat sink strip according to claim 4, is characterized in that: described bent angle (6) is 75 ° or 90 ° or 105 °.
CN201520306992.0U 2015-05-13 2015-05-13 Efficient high-strength PTC electric heater aluminium heat sink strip Active CN204721623U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520306992.0U CN204721623U (en) 2015-05-13 2015-05-13 Efficient high-strength PTC electric heater aluminium heat sink strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520306992.0U CN204721623U (en) 2015-05-13 2015-05-13 Efficient high-strength PTC electric heater aluminium heat sink strip

Publications (1)

Publication Number Publication Date
CN204721623U true CN204721623U (en) 2015-10-21

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CN201520306992.0U Active CN204721623U (en) 2015-05-13 2015-05-13 Efficient high-strength PTC electric heater aluminium heat sink strip

Country Status (1)

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CN (1) CN204721623U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105682268A (en) * 2016-04-01 2016-06-15 徐成东 PTC electrical heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105682268A (en) * 2016-04-01 2016-06-15 徐成东 PTC electrical heater

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhenjiang Dongfangshanyuan Electric Heating Co.,Ltd.

Assignor: ZHENJIANG DONGFANG ELECTRIC HEATING TECHNOLOGY CO.,LTD.

Contract record no.: X2023320000253

Denomination of utility model: Efficient and high-strength PTC electric heater aluminum heat dissipation strip

Granted publication date: 20151021

License type: Common License

Record date: 20231214

EE01 Entry into force of recordation of patent licensing contract