CN208462069U

CN208462069U - A kind of PTC electric heater of waterproof and breathable

Info

Publication number: CN208462069U
Application number: CN201821286418.3U
Authority: CN
Inventors: 解严; 郑进军; 宋大炼
Original assignee: ZHENJIANG DONGFANG ELECTRIC HEATING CO Ltd
Current assignee: ZHENJIANG DONGFANG ELECTRIC HEATING CO Ltd
Priority date: 2018-08-08
Filing date: 2018-08-08
Publication date: 2019-02-01
Anticipated expiration: 2028-08-08

Abstract

The utility model discloses a kind of PTC electric heaters of waterproof and breathable, including pedestal A, pedestal B, waterproof vent valve and the PTC electric heater core of aluminum pipe both ends not yet sealing；Threading hole is offered on pedestal A, is fixed in the end the A insertion pedestal A of PTC electric heater core extraction wire, conducting wire is pierced by pedestal A, encapsulating between the end pedestal A and A, end of the closing aluminum pipe at the end A from threading hole；Fixed in the end the B insertion pedestal B of PTC electric heater core, the periphery at pedestal B and the end B forms annular sealing and seals, and aluminum pipe has gap in the end at the end B and pedestal B, and waterproof vent valve is set on pedestal B and is connected to gap.While ensure that PTC electric heater waterproof performance, provide the channel that air enters aluminum pipe, so that the internal element in aluminum pipe is in ventilative state, it greatly reduces since internal element is closed for a long time, the blasted pipe phenomenon that may occur in long-time dry combustion method, improves the durability of PTC electric heater.

Description

A kind of PTC electric heater of waterproof and breathable

Technical field

The utility model relates to a kind of electric heater unit, especially a kind of PTC electric heating for having both waterproof and air permeability effect Device.

Background technique

PTC electric heater also has electrode slice, connecting terminal etc. electrical in addition to PTC ceramics heater element and aluminium heat sink strip Component, when installation, can also connect external cable.PTC electric heater is mainly used in air conditioner, hot air curtain device, dehumidifier, does Dry machine, dryer, warm-air drier, automobile etc. need to provide in the equipment of warm wind, when in use, sometimes in dehumidifying, except condensation, remove The band water working environment such as mould, requires PTC electric heater to have good waterproof performance at this time, guarantees safety in utilization.

For this purpose, generally being sealed to heat generating core therein, in the sealing of aluminum pipe both ends by what is connect with the electrode slice in heat generating core Conducting wire is drawn outside aluminum pipe, and good waterproof effect is reached between aluminum pipe and heat generating core.But PTC electric heater is mounted on air-conditioning In the bellows of the equipment such as machine, hot air curtain device, bellows are in close state, once PTC electric heater works long hours, due to aluminum pipe Interior heater element is closed for a long time, it is possible to which there is a phenomenon where dry combustion method bombings, and PTC electric heater is caused to be damaged.

Utility model content

Purpose of utility model: in view of the above problems, the object of the present invention is to provide one kind to have both waterproof and ventilative effect The phenomenon that PTC electric heater of fruit makes the heater element in aluminum pipe be also at ventilative state, avoids the occurrence of dry combustion method bombing.

Technical solution: a kind of PTC electric heater of waterproof and breathable, including pedestal A, pedestal B, waterproof vent valve and aluminium The PTC electric heater core of pipe both ends not yet sealing；

Threading hole is offered on the pedestal A, the pedestal A is inserted at the end A of the PTC electric heater core extraction wire Interior fixation, the conducting wire are pierced by the pedestal A from the threading hole, encapsulating between the pedestal A and the end A, described in closing End of the aluminum pipe at the end A；

Fixed in the pedestal B, the periphery of the pedestal B and the end B is inserted at the end B of the PTC electric heater core Annular sealing sealing is formed, the aluminum pipe has gap, the waterproof vent valve in the end at the end B and the pedestal B It is set on the pedestal B and is connected to the gap.

Further, the periphery position in the inner peripheral wall of the pedestal B corresponding to the end B is equipped with annular groove, the ring Encapsulating makes the periphery at the pedestal B and the end B form annular sealing sealing in slot.

Further, further include plug, the plug be sheathed on outside the pedestal A on the conducting wire and with the threading Hole stoppers, and to being sealed at threading hole, further ensures the waterproof performance of the aluminum pipe end at the end A.

Further, on aluminium heat sink strip of the end A outside the aluminum pipe be arranged encapsulating mouth, the encapsulating mouth with it is described It is communicated inside pedestal A, in order to which encapsulating operates into pedestal A, colloid is made to be flowed into the aluminum pipe end regions at the end A.

Further, the pedestal A is fixed respectively with sunk screw with the end A, the pedestal B and the end B.

The utility model has the advantages that compared with prior art, the utility model has the advantages that: at the end A of PTC electric heater core to this The aluminum pipe end sealing at end seals, and ensure that the waterproof performance of the aluminum pipe end at the end A, and sealing seals between the end B and pedestal B, Cooperate waterproof vent valve, ensure that the waterproof performance of the aluminum pipe end at the end B, thus ensure that the waterproof performance of PTC electric heater, The space that air enters between pedestal B and the aluminum pipe end at the end PTC electric heater core B is provided by waterproof vent valve simultaneously Chamber greatly reduces so that the internal element in aluminum pipe is in ventilative state since internal element is closed for a long time, in length The blasted pipe phenomenon that may occur when time dry combustion method, improves the durability of PTC electric heater.Through testing, single tube applies test electricity 2100Vac, electric current 10mA are pressed, heating 1 minute without breakdown, flashover.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the bottom view of Fig. 1；

Fig. 3 is the stereoscopic schematic diagram that pedestal B is connect with the end PTC electric heater core B.

Specific embodiment

In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, these embodiments are merely to illustrate this Utility model rather than limitation the scope of the utility model.

A kind of PTC electric heater of waterproof and breathable, as illustrated in the accompanying drawings from 1 to 3, including pedestal A1, pedestal B2, waterproof vent valve 3, PTC electric heater core 4, plug 6.

PTC electric heater core 4 includes aluminum pipe 41, the aluminium heat sink strip 45 outside aluminum pipe 41, and 41 one end of aluminum pipe is equipped with conducting wire 42 connect with the electrode slice in aluminum pipe 41, and PTC electric heater core 4 is the end A 43, the opposite other end in this one end of conducting wire 42 For the end B 44, the aluminum pipe end not yet sealing at the end A, the end B does not seal the heat generating core inside aluminum pipe.

Offer threading hole 11 on pedestal A1, the end A 43 of PTC electric heater core 4 is inserted into pedestal A1, and conducting wire 42 is from wearing String holes 11 is drawn out to outside pedestal A1, by sunk screw 7 that pedestal A1 and the end A 43 is fixed, is opened on the aluminium heat sink strip 45 at the end A 43 Equipped with encapsulating mouth 46, and communicated inside pedestal A1, by encapsulating mouth into pedestal A encapsulating, so that colloid is flowed into the aluminum pipe end at the end A Portion region sealing sealing, plug 6 are sheathed on conducting wire 42 outside pedestal A1 and are pushed into threading hole 11 and stopper, and carry out at threading hole Sealing, further ensures the waterproof performance of the aluminum pipe end at the end A.

The end B 44 of PTC electric heater core 4 is inserted into pedestal B2, has gap 5, shape in the end at the end B 44 and pedestal B2 It is by sunk screw 7 that pedestal B2 and the end B 44 is fixed at space chamber, the outer of the end B 44 is corresponded in the inner peripheral wall of pedestal B2 All positions are equipped with annular groove 21, so that the periphery at pedestal B and the end B is formed annular sealing by annular groove encapsulating and seal, but the aluminum pipe end at the end B Not by sealing, the insertion of waterproof vent valve 3 is set on pedestal B2 and is connected to gap 5 in portion, and external air is from waterproof vent valve The gap in pedestal B is entered, is only capable of entering the aluminum pipe end at the end B, hence into aluminum pipe.

The utility model sealing between aluminum pipe end, A end and pedestal A of the end A of PTC electric heater core to the end is close Envelope, ensure that the waterproof performance of the aluminum pipe end at the end A, and sealing seals between the end B and pedestal B, cooperate waterproof vent valve, guarantee The waterproof performance of the aluminum pipe end at the end B, to ensure that the waterproof performance of PTC electric heater, while passing through waterproof vent valve The space chamber that air enters between pedestal B and the aluminum pipe end at the end PTC electric heater core B is provided, so that in aluminum pipe Internal element is in ventilative state, greatly reduces since internal element is closed for a long time, may in long-time dry combustion method The blasted pipe phenomenon of generation improves the durability of PTC electric heater.Through testing, single tube applies test voltage 2100Vac, electric current 10mA, heating 1 minute without breakdown, flashover.

Claims

1. a kind of PTC electric heater of waterproof and breathable, it is characterised in that: including pedestal A (1), pedestal B (2), waterproof vent valve (3) and the PTC electric heater core (4) of aluminum pipe (41) both ends not yet sealing；

It is offered threading hole (11) on the pedestal A (1), the end A of PTC electric heater core (4) extraction wire (42) (43) it is inserted into the pedestal A (1) and fixes, the conducting wire (42) is pierced by the pedestal A (1) from the threading hole (11), described Encapsulating between pedestal A (1) and the end A (43) closes the aluminum pipe (41) in the end of the end A (43)；

Fixed in the pedestal B (2), the pedestal B (2) and the B are inserted into the end B (44) of the PTC electric heater core (4) The periphery at end (44) forms annular sealing sealing, and the aluminum pipe (41) is in the end of the end B (44) and the pedestal B (2) With gap (5), the waterproof vent valve (3) is set on the pedestal B (2) and is connected to the gap (5).

2. a kind of PTC electric heater of waterproof and breathable according to claim 1, it is characterised in that: the pedestal B (2) Annular groove (21) are equipped with corresponding to the periphery position of the end B (44) in inner peripheral wall, the interior encapsulating of the annular groove (21) makes the base The periphery of seat B (2) and the end B (44) forms annular sealing and seals.

3. a kind of PTC electric heater of waterproof and breathable according to claim 1, it is characterised in that: it further include plug (6), The plug (6) is sheathed on the conducting wire (42) outside the pedestal A (1) and stoppers with the threading hole (11).

4. a kind of PTC electric heater of waterproof and breathable according to claim 1, it is characterised in that: the end A (43) is in institute It states and encapsulating mouth (46) is set on the external aluminium heat sink strip (45) of aluminum pipe (41), the encapsulating mouth (46) and the pedestal A (1) are internal It communicates.

5. a kind of PTC electric heater of waterproof and breathable according to claim 1, it is characterised in that: the pedestal A (1) with The end A (43), the pedestal B (2) and the end B (44) are fixed respectively with sunk screw.