CN208079426U - A kind of outgoing wire at one end formula PTC metal heaters - Google Patents

Abstract

The utility model discloses a kind of outgoing wire at one end formula PTC metal heaters, including tube body and the electric heating assembly for being built in tubular body, the tube body circumferential surface is uniformly provided with multiple radiating fins, the electric heating assembly includes PTC thermistor, electrode and insulating plug, the insulating plug blocks described tube body one end, the tube body other end is open end, the PTC thermistor is arranged along axis in the tubular body, the positive and negative terminal of the electrode fits with the both sides outer wall of the PTC thermistor respectively, heating power；The electrode is stretched out by the open end of the tube body, and the end riveting that electrode stretches out has wire rod.The utility model solves the problems, such as the failure weldings such as desoldering, the dry joint of conventional metals ptc heater in process of production, avoids the problems such as poor contact of external wire rod and heater junction is struck sparks, and effectively reduce production cost, improves production efficiency.

Description

A kind of outgoing wire at one end formula PTC metal heaters

Technical field

The utility model is related to heater technical fields, and in particular to a kind of outgoing wire at one end formula PTC metal heaters.

Background technology

The use of PTC electric heater is very extensive, and the use especially in air conditioner is extremely wide.Existing heating Device, as shown in Figure 1, the power supply lead wire of its heater is by being attached at the metal insert of PTC thermistor exit and being crimped on Metal on conductive harness inserts spring and is connected.For the PTC thermistor of multigroup parallel connection, the connection between junction and electric power polarity Line is also to be interlinked by inserted sheet and slotting spring.It is all exposed in holder that the charging members such as spring, sheath and inserted sheet are inserted in these connections Outside, exposure is in air, not only complicated, causes cost higher.Meanwhile long-time service can aoxidize, and reduce bond strength, The hidden danger to fall off is had through external force vibrations, shake, it is extremely dangerous.

In addition, since the metal insert exposed on heater is that spot welding is got on, it is hidden easily to there are the quality such as desoldering, dry joint Suffer from；It tightly do not fall off easily, strike sparks if in addition inserting and being inserted after spring terminal patches；And it needs, using spring and terminal is inserted, to improve The production cost of product.

In addition, existing PTC electric heater uses double-head outlet mode, need longer wire rod, cost higher.

Utility model content

The purpose of this utility model is to provide a kind of outgoing wire at one end formula PTC metal heaters, which solves biography Unite the failure weldings such as desoldering, the dry joint of metal PTC heater in process of production the problem of, avoid external wire rod with heating The problems such as poor contact sparking of device junction, and production cost is effectively reduced, improve production efficiency.

To achieve the goals above, the technical solution of the utility model is：

A kind of outgoing wire at one end formula PTC metal heaters, including tube body and the electric heating assembly for being built in tubular body, it is described Tube body circumferential surface is uniformly provided with multiple radiating fins, and the electric heating assembly includes PTC thermistor, electrode and insulating plug, described Insulating plug blocks described tube body one end, and the tube body other end is open end, and the PTC thermistor is arranged along axis described The positive and negative terminal of tubular body, the electrode fits with the both sides outer wall of the PTC thermistor respectively, heating power；It is described Electrode is stretched out by the open end of the tube body, and the end riveting that electrode stretches out has wire rod.

Compared with prior art, the utility model has the beneficial effects that：

1, the utility model is not necessarily to inserted sheet and slotting spring, the case where having prevented failure welding, wire rod is directly riveted on electrode On more securely and to increase contact area be not in poor contact spark phenomenon；

2, the utility model is eliminated spot welding, the process that spring terminal is inserted in riveting, is effectively reduced using the structure directly riveted Production cost increases the reliability of product, and does not influence the unit for electrical property parameters such as the power of product, electric current；

3, the utility model is arranged using unilateral outlet, reduces length needed for wire rod, reduces cost.

Further improvement of the utility model scheme is as follows：

Further, seal chamber is fixed with outside the open end of the tube body, the electrode and wire rod are riveted on the sealing Intracavitary.

By using said program, at riveting, with extraneous next door, junction will be avoided by surrounding environment influence, cause to connect It touches bad.

Further, the inner surface of tube body is fitted with a strata imide membrane.

By using said program, Kapton ensures that tubing and fin will not be conductive, avoids security risk.

Further, the contact surface of PTC thermistor and electrode is equipped with intermediate temperature setting vulcanizate.

By using said program, intermediate temperature setting vulcanizate is filled between thermistor and electrode, plays raising product The effect of power.

Further, the tube body both ends are equipped with one layer of room temperature curing vulcanizate.

By using said program, one layer of room temperature curing vulcanizate is added at tube body both ends, ensures that tubular body sealing is anti- Water avoids influencing electric heating assembly normal work.

Further, the body open ends are equipped with silica gel sealing block, and the electrode passes through the silica gel sealing block.

By using said program, ensure the sealing of electric-heating assembly in pipe, avoid being influenced by external environment, influences normal Work.

Further, the section of the tube body is strip, and the radiating fin is symmetrically to be mounted on the tube body two Two groups of rectangular fins of side.

And the public one group of radiating fin of adjacent tubes further, including several sequentially connected tube bodies,.

By using said program, heating efficiency is improved.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar Element or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to actual ratios It draws.

Fig. 1 is the structural schematic diagram of the prior art.

Fig. 2 is the structural schematic diagram of the embodiments of the present invention.

Fig. 3 is the structural schematic diagram of the tube body of the embodiments of the present invention.

As shown in the figure：

1, tube body；2, radiating fin；3, PTC thermistor；4, electrode；5, insulating plug；6, intermediate temperature setting vulcanizate；7, room Temperature solidification vulcanizate；8 seal chambers；9, polyimide film；10, silica gel sealing block；11, wire rod；12, inserted sheet；13, spring is inserted.

Specific implementation mode

The embodiment of technical solutions of the utility model is described in detail below in conjunction with attached drawing.Following embodiment is only For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and this practicality cannot be limited with this Novel protection domain.

It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality The ordinary meaning understood with novel one of ordinary skill in the art.

In the description of the present application, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or Position relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or member Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important Property or implicitly indicate the quantity of indicated technical characteristic.The meaning of " plurality " is two in the description of the present invention, More than, unless otherwise specifically defined.

In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

In this application unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.

Fig. 2 is the structural schematic diagram of the embodiments of the present invention.

Fig. 3 is the structural schematic diagram of the tube body of the embodiments of the present invention.

As shown in Figures 2 and 3, a kind of outgoing wire at one end formula PTC metal heaters provided in this embodiment, including three sections For the tube body 1 of bar shaped and symmetrically mounted on the radiating fin 2 of 1 both sides of tube body, 1 public one group of radiating fin of adjacent tubes 2.Tube body 1 and radiating fin 2 are aluminum, and heat-conductive characteristic is good.

Electric heating assembly is equipped in tube body 1, electric heating assembly includes PTC thermistor 3, electrode 4 and insulating plug 5.Insulation Plug 5 blocks one end of tube body 1, and the other end of tube body 1 is open end.

PTC thermistor 3 is axially arranged on inside tube body 1, and electrode 4 is also axially symmetric to be arranged inside tube body 1, and And the two poles of the earth of electrode 4 fit with the outer wall both sides of PTC thermistor 3 respectively, heating power.

Electrode 4 is additionally provided with intermediate temperature setting vulcanizate 6 with being bonded out for PTC thermistor 3.

The open end of tube body 1 is additionally provided with silica gel sealing block 10, and is fixed with seal chamber 8 on the outside of open end, and electrode 4 passes through Silica gel sealing block 10 enters seal chamber 8, and wire rod 11 is inserted into seal chamber 8 and is riveted with 4 end of electrode.

The both ends of tube body 1 are equipped with one layer of room temperature curing vulcanizate 7.

The inner surface of tube body 1 is fitted with one layer of polyimide film 9, ensures that leakproof, high temperature resistant avoid security risk.

The present embodiment is not necessarily to inserted sheet 12 and slotting spring 13, the case where having prevented failure welding, wire rod 11 is directly riveted on electricity On pole 4 more securely and to increase contact area be not in poor contact spark phenomenon.

The present embodiment is eliminated spot welding, the process that spring terminal is inserted in riveting, is effectively reduced production using the structure directly riveted Cost increases the reliability of product, and does not influence the unit for electrical property parameters such as the power of product, electric current.

The present embodiment is arranged using unilateral outlet, reduces length needed for wire rod, reduces cost.

Seal chamber 8 is fixed with outside the open end of the present embodiment tube body 1, electrode 4 and wire rod 11 are riveted in seal chamber 8, will With extraneous next door at riveting, avoids junction by surrounding environment influence, lead to poor contact.

1 inner surface of the present embodiment tube body is fitted with a strata imide membrane 9, and Kapton 9 ensures tubing and wing Piece will not be conductive, avoids security risk.

The present embodiment PTC thermistor 3 and the contact surface of electrode 4 are equipped with intermediate temperature setting vulcanizate 6, play and improve product work( The effect of rate

1 both ends of the present embodiment tube body are equipped with one layer of room temperature curing vulcanizate 7, ensure 1 inner sealing waterproof of tube body, avoid Influence electric heating assembly normal work.

1 open end of the present embodiment tube body is equipped with silica gel sealing block 10, and electrode 4 passes through silica gel sealing block 10, ensures electricity in pipe The sealing of hot component avoids being influenced by external environment, influences to work normally.

The section of the present embodiment tube body 1 is strip, and radiating fin 2 is two groups of squares for being symmetrically mounted on 1 both sides of tube body Shape fin；Heater includes sequentially connected three tube bodies 1, and 1 public one group of radiating fin 2 of adjacent tubes altogether；It improves whole The utilization rate of body radiating fin 2, improves heating efficiency.

In the specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the reality of the utility model Applying example can put into practice without these specific details.In some instances, well known method, knot is not been shown in detail Structure and technology, so as not to obscure the understanding of this description.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combines and combination.

Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.

Claims (8)

1. a kind of outgoing wire at one end formula PTC metal heaters, which is characterized in that including tube body and the electrical heating for being built in tubular body Component, the tube body circumferential surface are uniformly provided with multiple radiating fins, and the electric heating assembly includes PTC thermistor, electrode and absolutely Edge plug, the insulating plug block described tube body one end, and the tube body other end is open end, and the PTC thermistor is along axis It is arranged in the tubular body, the positive and negative terminal of the electrode fits with the both sides outer wall of the PTC thermistor respectively, is powered Fever；The electrode is stretched out by the open end of the tube body, and the end riveting that electrode stretches out has wire rod.

2. a kind of outgoing wire at one end formula PTC metal heaters according to claim 1, which is characterized in that the tube body is opened Mouth is fixed with seal chamber outside end, and the electrode and wire rod are riveted in the seal chamber.

3. a kind of outgoing wire at one end formula PTC metal heaters according to claim 1, which is characterized in that table in the tube body Face is fitted with a strata imide membrane.

4. a kind of outgoing wire at one end formula PTC metal heaters according to claim 1, which is characterized in that the PTC temperature-sensitives electricity Resistance and the contact surface of electrode are equipped with intermediate temperature setting vulcanizate.

5. a kind of outgoing wire at one end formula PTC metal heaters according to claim 1, which is characterized in that the tube body both ends It is equipped with one layer of room temperature curing vulcanizate.

6. a kind of outgoing wire at one end formula PTC metal heaters according to claim 1, which is characterized in that the body open End is equipped with silica gel sealing block, and the electrode passes through the silica gel sealing block.

7. a kind of outgoing wire at one end formula PTC metal heaters according to claim 1, which is characterized in that the tube body is cut Face is strip, and the radiating fin is two groups of rectangular fins for being symmetrically mounted on the tube two sides.

8. a kind of outgoing wire at one end formula PTC metal heaters according to claim 4, which is characterized in that including it is several successively The tube body of connection, and the public one group of radiating fin of adjacent tubes.