KR100879639B1 - Heat Rod Assembly and Pre-Heater for Vehicles Including the Same - Google Patents

Abstract

The present invention relates to a heat rod assembly and a vehicle preheater including the same.

The PTC element and the (+) terminal are coupled to each other in the combination of the cover heat rod and the receiving heat rod, and the combination of the (+) terminal and the heat rod is insulated from each other by an insulating plate and an insulator, and the insulator 120 has a length. An installation groove 121 extending in a direction is formed, but a plurality of coupling holes 122 are formed at the bottom of the installation groove 121 to which the insulating plate 140 is coupled, and the installation groove 121 of the installation groove 121 is formed. A plurality of locking jaws 123 are formed on both inner surfaces, and fitting grooves 131 fitted to the locking jaws 123 are formed at both sides of the (+) terminal 130. A heat rod assembly of the preheater and a heat fin assembly (200) arranged side by side on both sides of the heat rod assembly (100); A (-) terminal 300 arranged side by side with the heat fin assembly 200; And frames 600 and 900 for supporting the combination of the heat rod assembly 100, the heat fin assembly 200, and the (-) terminal 300. Therefore, there is an advantage that the entire assembly operation is easy because a rigid intermediate coupling configuration is possible through friction coupling.

 Vehicle, preheater, heat rod, positive terminal, PTC element, insulation plate, insulator

Description

Heat Rod Assembly and Pre-Heater for Vehicles Including the Same}

1 is a perspective view showing the structure of a general vehicle preheater.

2 is a view showing a conventional heat rod assembly structure, where (a) is a perspective view, (b) is an exploded perspective view, and (c) is a cross sectional view.

3 is a perspective view showing a heat rod assembly included in a vehicle preheater according to the present invention.

4 is an exploded perspective view showing a heat rod assembly included in a vehicle preheater according to the present invention.

5 is a cross-sectional view showing a heat rod assembly included in a vehicle preheater according to the present invention.

FIG. 6 is a perspective view illustrating a coupling structure of the (+) terminal and the insulator in FIG. 4.

7 is an exploded perspective view of FIG. 6.

8 is a perspective view showing the structure of a vehicle preheater including a heat rod assembly according to the present invention.

9 is an exploded perspective view of FIG. 8.

※ Explanation of Major Drawings

100 ... Heat Rod Assembly

110. Storage heat rod

120 ... insulator

121 ... Home

122 ... Joiner

123 ... Jams

124 ... terminal stand

125. Tip Expansion Unit

126 ... rear end enlargement

128 ... Central

130 ... (+) terminal

131.Fitting groove

140 ... Insulation Plate

150 ... cover heat rod

180. PTC element

200 ... heat fin assembly

300 ... (-) terminal

400 ... front housing

600,900 ... Frame

800 ... rear housing

The present invention relates to a heat rod assembly and a vehicle preheater including the same, and more particularly, to a heat rod assembly for preheating air in a vehicle interior using heat generated by a PTC element and a vehicle preheater including the same.

In a typical vehicle, a heating apparatus is installed that uses heat energy of cooling water heated by heat generated by an engine for heating indoors, dehumidifying or defrosting the windshield of the vehicle.

However, according to the conventional heating apparatus, since the cooling water flowing around the engine flows into the heater after the engine is started, it may take a long time before the cooling water is heated and the room is heated. Accordingly, there has been a disadvantage in that the cold state for a certain time after starting.

Recently, various preheaters have been developed to solve such problems, and as a representative structure, a preheater using a PTC (Positive Temperature Coefficient) device is disclosed in Korean Patent Publication No. 445722 (Applicant: Woori Industry) (hereinafter, "Prior Art". This conventional configuration will be described with reference to FIGS. 1 to 3 as follows.

The vehicle preheater 1000 of the related art includes a heat rod assembly 100 including a PTC element, and heat fin assemblies 210 and 220 arranged side by side on both sides of the heat rod assembly 100. (-) Terminal 300 arranged in parallel with the heat fin assembly, and both side ends of the combination of the heat rod assembly 100, the heat fin assembly 210, 220, and the (-) terminal 300 ( The frame 600 and 900 coupled to each other, and the heat rod assembly 100, the heat fin assembly 200, the negative terminal 300, and the frame 600 and 900, respectively. It is comprised including the housing 400 and 800 which couple | bond together with each other at the both ends of a coupling body.

A brief description of the heat rod assembly 100 shown in FIG. 2 is as follows.

First, the accommodating heat rod 110 is configured in a channel shape to serve as a kind of accommodating part.

The insulator 120 is disposed at the bottom of the accommodating heat rod 110 to prevent a short. The insulator 120 is made of a material having a good non-conductor property and thermal conductivity, such as NYLON material.

In addition, the (+) terminal 130 made of carbon steel in the longitudinal direction is fixedly coupled on the insulator 120. To this end, a groove is formed in the bottom of the insulator 120 to accommodate a relatively thin (+) terminal 130.

In addition, the insulating plate 140 generated by the power supply is coupled to the insulator 120 through the (+) terminal. To this end, the step groove 124 is formed on the side of the bottom groove 125 of the insulator 120.

Finally, the opening of the accommodating heat rod 110 is closed by the lid heat rod 150. To this end, a jaw is formed on the inner surface of the flange top of the storage heat rod 110, and the top of the flange is swung (swaged) while the cover heat rod 150 is placed on the jaw.

In the prior art, since the (+) terminal 130 is in the form of a strip having a constant width, the (+) terminal 130 and the insulator 120 are coupled to the (+) terminal 130 without misalignment. The coupling hole was formed in the) and the insulator 120 had to be formed with a protrusion 123 fitted into the coupling hole.

However, if there is a slight error in the position of the protrusion 123 and the coupling hole, not only the assembly operation itself is smooth, but also if forced to fit (+) terminal 130, wrinkles are generated so that the entire assembly structure is twisted There was a problem.

That is, according to the prior art, the assembly work is difficult and the assembly state is also poor, there is a difficulty in quality control of the product.

On the other hand, according to another prior art, there is a hook coupling for fixing the (+) terminal, etc. In this case, a separate machining process is added, causing a cost increase.

The present invention has been made to solve the above problems, an object of the present invention is to provide a heat rod assembly and a vehicle preheater comprising the same simple assembly operation.

In addition, another object of the present invention is to provide a heat rod assembly and a vehicle preheater including the same, the assembly strength is large, the subsequent assembly operation is easy.

In addition, another object of the present invention is to provide a heat rod assembly having excellent product quality and a vehicle preheater including the same.

In order to achieve the above object, the heat rod assembly of a vehicle preheater according to the present invention,

In the heat rod assembly of a vehicle preheater in which a PTC element and a (+) terminal are coupled in a combination of a cover heat rod and a storage heat rod, and the combination of the (+) terminal and the heat rod is insulated from each other by an insulating plate and an insulator. ,

The insulator is provided with an installation groove extending in the longitudinal direction, a plurality of coupling holes are formed in the bottom of the installation groove, a plurality of engaging jaw is formed on both inner surfaces of the installation groove,

Both sides of the (+) terminal is characterized in that the fitting groove is formed to be fitted to the locking jaw.

In this case, between the plurality of coupling holes formed in the insulator is characterized in that to form a terminal support for supporting the (+) terminal.

In addition, the locking step is preferably formed at equal intervals on the left and right around the terminal support.

In addition, the insulator is characterized in that the intermediate portion formed with the installation groove, the coupling hole, the locking step and the terminal support, and the front end enlargement portion and the rear end enlargement portion larger than the cross-sectional area of the intermediate portion is respectively coupled.

In addition, the tip enlarged portion is formed with an auxiliary installation groove communicating with the installation groove, the auxiliary engaging jaw is formed on both inner side surfaces of the auxiliary installation groove, the auxiliary engaging jaw on both sides of the (+) terminal It characterized in that the auxiliary fitting groove is formed to be fitted to.

In addition, when viewed from the surface direction, when viewed from the surface direction, the locking jaw and the fitting groove is in the shape of a square, the auxiliary locking jaw and the auxiliary fitting groove is formed in the shape of the extension is formed in the corner of the square. It features.

The insulating plate and the PTC element may be disposed to face each other through the coupling hole through the positive terminal.

In addition, the vehicle preheater according to the present invention,

The aforementioned heat rod assembly;

Heat fin assemblies arranged side by side on both sides of the heat rod assembly;

(-) Terminals arranged side by side with the heat fin assembly; And

And a frame for supporting the combination of the heat rod assembly, the heat fin assembly, and the (-) terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing a heat rod assembly included in the vehicle preheater according to the present invention, Figure 4 is an exploded perspective view showing a heat rod assembly included in the vehicle preheater according to the present invention, Figure 5 is FIG. 6 is a cross-sectional view illustrating a heat rod assembly included in a vehicle preheater. FIG. 6 is a perspective view illustrating a coupling configuration of a (+) terminal and an insulator in FIG. 4, FIG. 7 is an exploded perspective view of FIG. 6, and FIGS. 8 and 9 It is a view showing the structure of a vehicle preheater including a heat rod assembly according to the present invention described above.

As shown in FIG. 8 and FIG. 9, the vehicle preheater 1000 according to the present embodiment includes a heat rod assembly 100 including a PTC element and a side of the heat rod assembly 100, respectively. An arranged heat fin assembly 200, a (-) terminal 300 arranged side by side with the heat fin assembly 200, the heat rod assembly 100, a heat fin assembly 200, and a (-) terminal Frames 600 and 900, which are respectively coupled to both side ends of the assembly of 300; Housing 400 for coupling the combination of the heat rod assembly 100, heat fin assembly 200, (-) terminal 300, and the frame 600, 900 at each end (서로 部) It comprises 800.

Each component constituting the vehicle preheater 1000 according to the present invention will be described in detail as follows.

3 to 5, the heat rod assembly 100 of the vehicle preheater according to the present invention is a channel-type receiving heat rod 110, PTC element 180, (+) terminal 130, The insulating plate 140, the insulator 120, and the cover heat rod 150 are formed.

In particular, the insulator 120 has an installation groove 121 extending in the longitudinal direction, but a plurality of coupling holes 122 are formed at the bottom of the installation groove 121 to which the insulating plate 140 is coupled. In addition, a plurality of locking jaws 123 are formed on both inner surfaces of the installation groove 121.

The coupling hole 122 is a portion into which the insulating plate 140 formed in a substantially rectangular plate shape is fitted, and is formed at predetermined intervals along its length direction. That is, the gap may be formed to be constant, or may have a slightly different size in accordance with the surrounding structure. The coupling hole 122 and the insulating plate 140 may be fitted to be somewhat stiff so as not to separate themselves.

In addition, the locking step 123 formed on both inner surfaces of the installation groove 121 is a component for tightly coupling the (+) terminal 130 and supporting the insulating plate 140.

Therefore, fitting grooves 131 are formed at both sides of the positive terminal 130 to correspond to the locking step 123. In particular, the fitting groove 131 of the (+) terminal 130 is preferably a relative dimension to the extent that can be pressed by hand to the engaging jaw 123 of the insulator 120. When configured and assembled in this way, the friction force acts between the fitting groove 131 and the locking jaw 123, and the case does not fall out by itself, and may be easily separated by applying a moderate force by hand. That is, the assembly strength is excellent and the separation operation can be made simply.

In the drawing, the locking jaw 123 and the fitting groove 131 has a rectangular shape when viewed from the surface direction. Of course, there is no need to specifically limit the shape if there is no manufacturing difficulty.

6 and 7, a terminal support 124 supporting the (+) terminal 130 is formed between the coupling holes 122 formed in the insulator 120.

The locking jaws 123 are formed at equal intervals on the left and right sides of the terminal support 124 to uniformly receive the supporting load. However, the position of the locking jaw 123 may be determined in various ways.

As shown in FIG. 7, the insulator 120 includes a middle portion 128 and a front end portion 125 and a rear end portion 126 that are larger than the cross-sectional area at both ends of the middle portion 128. It has a formed configuration. In this manner, the housing heat rod 110 and the lid heat rod 150 are firmly coupled to the middle portion 128, and there is no fear of a short or the like.

In detail, the middle portion 128 is a portion in which the installation groove 121, the coupling hole 122, the locking jaw 123, and the terminal support 124 are formed, respectively, at both ends of the middle portion 128. The front end enlargement portion 125 and the rear end expansion portion 126 formed are components in which both ends of the accommodating heat rod 110 and the cover heat rod 150 are closely coupled to each other.

The tip expansion unit 125 has an auxiliary installation groove 125a communicating with the installation groove 121, so that the (+) terminal 130 is seated. In particular, the auxiliary engaging jaw (125b) is formed on both inner surfaces of the auxiliary installation groove (125a), and the auxiliary fitting groove (fit) fitted to the auxiliary engaging jaw (125b) on both sides of the (+) terminal 130 ( 131a) is further formed to significantly increase the assembly strength.

Moreover, when viewed from the surface direction, the auxiliary locking jaw (125b) and the auxiliary fitting groove (131a) is in the shape of the expansion portion (C) is formed in the corner of the square, the assembly strength is further improved. In addition, since the expansion portion (C) has a thin protrusion shape, the assembly strength due to friction is further increased.

On the other hand, by pulling with a suitable force by hand (+) terminal 130 and the insulator 120 can be easily separated.

As such, the (+) terminal 130 and the insulator 120 are assembled by a friction coupling between the locking jaw 123 and the fitting groove 131, and the auxiliary locking jaw 125b and the auxiliary fitting groove 131a. It is sturdy and can not be detached by itself in the absence of external force and can be easily removed by hand.

In addition, since the (+) terminal 130 and the insulator 120 are assembled by a simple mutual fitting, the assembly process is simple.

On the other hand, at least one PTC element 180 is configured to face the coupling hole 122 of the insulator 120 via the (+) terminal 130. In this case, the PTC device 180 is fitted in close contact between the engaging jaw 123 formed at both ends of the coupling hole 122.

In addition, when the engagement between the PTC element 180 and the engaging jaw 123 formed near both ends of the coupling hole 122 is configured as an interference fit, the storage heat rod 110 and the cover heat rod 150 which are subsequent assembly processes are formed. ) Can be more easily combined.

Referring to Figure 5 looks at the overall coupling configuration of the heat rod assembly 100 according to the present invention.

The PTC element 180 is in contact with the bottom surface of the channel-shaped accommodating heat rod 110, and the positive terminal 130 is in contact with the PTC element 180. In addition, an insulating plate 140 is disposed on the (+) terminal 130 in contact with each other, and the insulating plate 140, the (+) terminal 130, and the assembly of the PTC element 180 and the storage heat rod 110 are disposed. An insulator 120 is disposed in the. Finally, the cover heat rod 150 is in contact with the insulating plate 140 to cover the opening of the storage heat rod 110.

However, it is sufficient that the insulating plate 140 and the PTC element 180 are disposed to face each other through the coupling hole 122 via the (+) terminal 130, and the positions thereof may be reversed.

As shown in FIG. 9, the heat fin assembly 200 has a configuration in which a corrugate pin 210 is fixed to the pin plate 220 in the longitudinal direction. However, various conventional heat fin assemblies other than corrugated shapes can be used. The corrugated fin 210 and the fin plate 220 may use a material having a high heat transfer rate such as aluminum.

The heat fin assembly 200 may be easily modified and changed by those skilled in the art.

Meanwhile, the heat rod assembly 100, the heat fin assembly 200, and the (-) terminal 300 are coupled at both ends by a front housing 400 and a rear housing 800 made of a material such as PBT. . The housings 400 and 800 may be made of an insulator such as synthetic resin.

Instead of the front housing 400 and the rear housing 800, a cover type insulator frame may be combined.

According to the present invention having the above-described configuration, the insulator is provided with a plurality of engaging holes and a plurality of engaging jaws, and both sides of the (+) terminal are formed with fitting grooves fitted to the engaging jaws, so that they simply The frictional engagement between the fitting grooves enables not only a solid intermediate assembly but also easy removal by hand.

Accordingly, since the assembly is performed by simply inserting by hand without hook coupling for fixing the (+) terminal, the process is shortened and the cost is greatly reduced.

In addition, according to the present invention, by simply inserting the insulation plate, the insulator, the positive terminal, and the PTC element in order, a rigid connection is possible so as not to be separated by itself, thereby facilitating the assembly process of the subsequent cover heat rod and the receiving heat rod. do.

In addition, according to the present invention, the insulator has a middle portion including an installation groove, a coupling hole, a locking step and a terminal support, and a front end enlargement portion and a rear end enlargement portion larger than its cross-sectional area at both ends of the intermediate portion, so that the lid heat rod and the accommodating portion are accommodated. The coupling structure with the heat rod is firm and compact, and the short phenomenon is prevented.

In addition, according to the present invention, the tip extending portion is provided with auxiliary installation grooves communicating with the installation grooves, and both of the inner side surfaces of the auxiliary installation grooves are formed with auxiliary locking jaws further coupled with the (+) terminal Can be enhanced.

In addition, according to the present invention, since an extension is formed at the corners of the auxiliary locking jaw and the auxiliary fitting groove, frictional force is increased, thereby enabling a more robust coupling.

Claims (8)

In the heat rod assembly of a vehicle preheater in which a PTC element and a (+) terminal are coupled in a combination of a cover heat rod and a storage heat rod, and the combination of the (+) terminal and the heat rod is insulated from each other by an insulating plate and an insulator. , The insulator is provided with an installation groove extending in the longitudinal direction, a plurality of coupling holes are formed in the bottom of the installation groove, a plurality of engaging jaw is formed on both inner surfaces of the installation groove, On both sides of the (+) terminal is formed fitting grooves to be fitted to the locking jaw, And a terminal support for supporting the (+) terminal between the plurality of coupling holes formed in the insulator. delete The method of claim 1, The locking jaw is a heat rod assembly of a vehicle pre-heater, characterized in that formed at equal intervals on the left and right around the terminal support. The method of claim 1, The insulator may include a middle portion formed with the installation groove, a coupling hole, a latching jaw, and a terminal support, and a front end enlargement portion and a rear end enlargement portion larger than the cross-sectional area at both ends of the middle portion, respectively. Heat rod assembly. The method of claim 4, wherein Auxiliary installation grooves are formed in the tip enlarged portion communicating with the installation grooves. Auxiliary locking jaws are formed on both inner surfaces of the auxiliary installation grooves, and both sides of the (+) terminal are inserted into the auxiliary locking jaws. Heat rod assembly of a pre-heater for a vehicle, characterized in that the auxiliary fitting groove is lost. The method of claim 5, When viewed from the cover heat rod toward the storage heat rod, the locking jaw and the fitting groove is in the shape of a square, the auxiliary locking jaw and the auxiliary fitting groove is characterized in that the extension is formed in the corner of the square. A heat rod assembly of a vehicle preheater. The method of claim 1, And the insulation plate and the PTC element are disposed to face each other through the coupling hole via the positive terminal. A heat rod assembly according to any one of claims 1 to 3; Heat fin assemblies arranged side by side on both sides of the heat rod assembly; (-) Terminals arranged side by side with the heat fin assembly; And And a frame for supporting the combination of the heat rod assembly, the heat fin assembly, and the (-) terminal.

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