CN210112304U

CN210112304U - PTC heating assembly and PTC heating package

Info

Publication number: CN210112304U
Application number: CN201920781124.6U
Authority: CN
Inventors: 顾一新
Original assignee: Dongguan Zhengyang Electronic Mechanical Co ltd
Current assignee: Guangdong Zhengyang Sensor Technology Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-02-21
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to a PTC heater spare part technical field discloses a PTC heating element and PTC adds heat bag, this PTC heating element, including heating element, the electrode slice of setting in the heating element both sides to and set up the insulating film in two electrode slice outsides, still including encapsulating the frame, encapsulate the frame cladding in heating element's circumference, and be located between two electrode slices. The PTC heating assembly is provided with the packaging frame, so that the influence of external impurities can be effectively prevented, the sealing property of the heating element is enhanced, and the phenomena of electric arcs, electric flashover and the like are avoided; the phenomenon that the PTC heating assembly breaks down due to the fact that oxygen atoms in the heating element run outwards to cause poor pressure resistance of the heating element is avoided; the setting of encapsulation frame is convenient for beat the operation of gluing, utilizes the solidification of colloid, makes to beat and glues more evenly, avoids causing the waste. The PTC heating bag has good sealing and heat dissipation effects and good pressure resistance, avoids electric arcs, electric flashover and other phenomena, avoids breakdown and fracturing, and prolongs the service life.

Description

PTC heating assembly and PTC heating package

Technical Field

The utility model relates to a PTC heater spare part technical field especially relates to a PTC heating element and PTC adds heat bag.

Background

The PTC heater comprises a PTC heating element, positive and negative electrode plates and an encapsulation shell, is a novel electric heater, and becomes one of the most widely applied electric heating devices at present due to the technical advantages of high heat exchange efficiency, safety, reliability, automatic constant temperature, low power consumption, rapid temperature rise, small volume and the like.

The existing PTC heating assembly has the following problems:

the PTC heating element is exposed at the periphery and is easily influenced by surrounding impurities to generate phenomena such as electric arc, electric flashover and the like.

The periphery of the PTC heating element is not completely or hermetically sealed, so that oxygen atoms with high concentration on a grain boundary in the heating element can be easily diffused and overflow to the outside with low concentration, the grain boundary resistance of the PTC is reduced, the lift-drag ratio is reduced, the characteristics of the PTC heating assembly are seriously deteriorated, and finally, the voltage resistance is deteriorated, so that the PTC heating assembly breaks down.

3. The glue applying operation is not facilitated in the manufacturing process, and the glue curing forming is also not facilitated, so that the glue applying is not uniform, the flowing diffusion range is too large, the waste is caused, and the sealing reliability is reduced.

4. Electrode slice is direct and the laminating of insulating film piece in the encapsulation of current PTC heating element, can produce some contact gaps, is unfavorable for PTC heating element's heat dissipation, influences the heating effect, and the size change that PTC heating element brought when expend with heat and contract with cold can not be absorbed to another one, leads to PTC heating element to be fractured.

Accordingly, it is desirable to provide a PTC heating assembly that can solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PTC heating element and PTC adds heat bag can avoid producing phenomenons such as electric arc, electric flashover, prevents to puncture, utilizes the colloid solidification, avoids producing the clearance between electrode slice and the insulating diaphragm.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a PTC heating element, be in including heating element, setting the electrode slice of heating element both sides to and set up two the insulating film in the electrode slice outside still includes the encapsulation frame, the encapsulation frame cladding is in heating element's circumference, and is located two between the electrode slice. The PTC heating assembly is provided with the packaging frame, the packaging frame is coated on the circumferential direction of the heating element, and the packaging frame is connected with the circumferential direction of the heating element through the insulating colloid, so that the influence of external impurities can be effectively prevented, the sealing property of the heating element is enhanced, and the phenomena of electric arc, electric flashover and the like are avoided; the phenomenon that the PTC heating assembly breaks down due to the fact that oxygen atoms in the heating element run outwards to cause poor pressure resistance of the heating element is avoided; the setting of encapsulation frame is convenient for beat the operation of gluing, utilizes the solidification of colloid, makes to beat and glues more evenly, avoids causing the waste.

As an optimal scheme of the PTC heating assembly, the inner side of each insulating membrane is provided with a heat-conducting glue layer, so that a gap between the electrode plate and the insulating membrane can be effectively filled, the heat-conducting efficiency is increased, the size change of the heating element caused by expansion with heat and contraction with cold is absorbed, and the heating element is prevented from being fractured.

As a preferable mode of the above PTC heating assembly, a rib structure is provided at a circumferential direction of one side of the package frame, and the rib structure and the package frame form an accommodation region for accommodating the heating element. The arrangement of the flange structure can form an accommodating area with the packaging frame, so that the heating element can be accommodated conveniently.

As a preferable scheme of the PTC heating assembly, the rib structure is provided with a plurality of positioning protrusions, the heating element is in contact with each positioning protrusion, and a colloid flow channel is formed between the positioning protrusions. The setting of location arch can play the effect of fixing a position heating element, forms the colloid runner moreover between each location arch, is convenient for do benefit to the colloid solidification shaping.

As a preferable aspect of the above PTC heating assembly, the gel flow path between the package frame and the heating element is configured to receive an insulating gel.

As a preferable scheme of the PTC heating assembly, positioning pillars are disposed on both sides of the package frame, positioning holes are correspondingly disposed on the electrode sheets on both sides of the package frame, and the positioning pillars are inserted into the positioning holes. The arrangement of the positioning columns and the positioning holes can align the packaging frame and the electrode plate, so that the packaging frame and the electrode plate can be conveniently and quickly installed.

As a preferable mode of the above PTC heating assembly, the tab of the electrode sheet is higher than the package frame. The lugs of the electrode plates are higher than the packaging frame, so that other structures can be conveniently connected.

As a preferable scheme of the PTC heating assembly, the bottoms of the two insulating films outside the two electrode sheets are connected to form a U-shaped structure.

The utility model also provides a PTC adds heat exchanger package, including foretell PTC heating element, still include:

the PTC heating assembly is arranged in the U-shaped clamp device;

the heating convex hull is internally provided with a containing groove, the U-shaped clamp device provided with the PTC heating assembly is inserted in the containing groove, and the U-shaped clamp device is tightly pressed in the containing groove through a pressing assembly.

This PTC adds heat bag sealed effect and radiating effect are better, can avoid phenomenons such as electric arc, electric flashover, and pressure resistance is better, avoids taking place to puncture, can prevent that PTC heating element of heating element from being by the fracturing, prolongs PTC adds heat bag's life.

As a preferable mode of the PTC heating pack, the U-shaped clip device includes a U-shaped clip body having a U-shaped structure, one side wall of the U-shaped clip body is a vertical plate, and an upper portion of the other side wall is bent to an outer side of the U-shaped clip body to form a curved surface structure. The U-shaped clamping device is characterized in that one side wall of the U-shaped clamping body is arranged to be a vertical plate, the upper portion of the other side wall bends towards the outer side of the U-shaped clamping body to form an arc-shaped structure, when the U-shaped clamping device is installed in a heating bag for a PTC heater, the arc-shaped structure of the U-shaped clamping body can be tightly attached to the PTC heating assembly through the pressing assembly, the heat conduction efficiency is improved, and gaps generated due to deformation of the U-shaped clamping body are effectively filled.

The utility model has the advantages that:

the utility model provides a PTC heating element, encapsulation frame cladding are in heating element's circumference, link to each other with encapsulation frame through insulating colloid in heating element circumference, can effectively prevent the influence of outside impurity, strengthen heating element's leakproofness, avoid producing phenomenons such as electric arc, electric flashover; the phenomenon that the PTC heating assembly breaks down due to the fact that oxygen atoms in the heating element run outwards to cause poor pressure resistance of the heating element is avoided; the setting of encapsulation frame is convenient for beat the operation of gluing, utilizes the solidification of colloid, makes to beat and glues more evenly, avoids causing the waste.

The utility model provides a PTC heating element all is provided with the heat-conducting glue layer in each insulating diaphragm's inboard, can effectively fill the clearance between electrode slice and the insulating diaphragm, increases heat conduction efficiency, absorbs the dimensional change that heating element brought when expend with heat and contract with cold, prevents that heating element from being fractured.

The utility model provides a PTC adds heat bag, sealed effect and radiating effect are better, can avoid phenomenons such as electric arc, electric flashover, and pressure resistance is better, avoids taking place to puncture, can prevent PTC heating element by fracturing, prolongs PTC adds heat bag's life.

The utility model provides a U type presss from both sides device sets up to the riser through a lateral wall with the U type clamp main part, the upper portion of another lateral wall to the crooked cambered surface structure that forms in the outside of U type clamp main part, when pressing from both sides the device with the U type and installing in PTC heater is with heating package, can be inseparable with the cambered surface structure and the laminating of PTC heating element of U type clamp main part through compressing tightly the subassembly, improve heat conduction efficiency, effectively fill because of the clearance that the U type clamp main part warp the production.

Drawings

Fig. 1 is an exploded view of a PTC heating assembly provided by the present invention;

fig. 2 is a schematic diagram of the package frame of the PTC heating assembly and an electrode plate to be assembled;

fig. 3 is a schematic structural view of a package frame of the PTC heating assembly provided by the present invention;

fig. 4 is a schematic structural view of the package frame provided by the present invention after the heating element is mounted thereon;

fig. 5 is a schematic structural view of the package frame after installing the heating element and disposing the insulating gel;

fig. 6 is a diagram of the PTC heating assembly provided by the present invention to be assembled;

fig. 7 is a schematic structural view of the PTC heating assembly provided by the present invention;

fig. 8 is a cross-sectional view of a PTC heating assembly provided by the present invention;

fig. 9 is a schematic diagram of the PTC heating element and the U-shaped clamping device to be installed according to the present invention;

fig. 10 is a schematic structural view of the PTC heating element mounted on the U-shaped clamping device according to the present invention;

fig. 11 is a schematic structural view of the PTC heating pack mounting U-shaped clamping device and the PTC heating assembly provided by the present invention;

fig. 12 is a schematic view of a structure to be assembled of the PTC heating pack and the conduction assembly plate provided by the present invention;

fig. 13 is a schematic structural view of the PTC heating pack according to the present invention mounted on the conduction assembly plate.

In the figure:

100. a PTC heating assembly;

1. a heating element; 2. an electrode sheet; 3. an insulating membrane; 4. a package frame; 5. a heat-conducting adhesive layer; 6. a flange structure; 7. an accommodating area; 8. insulating colloid;

21. positioning holes; 22. a lug; 41. a positioning column; 61. positioning the projection; 62. a colloid flow channel;

200. a U-shaped clamp device; 300. heating the convex hull; 301. a containing groove; 400. conducting the group plate; 500. a compression assembly;

201. a vertical plate; 202. and (4) an arc surface structure.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The present embodiment provides a PTC heating assembly, as shown in fig. 1 to 8, a PTC heating assembly 100 includes a heating element 1, electrode sheets 2 disposed at both sides of the heating element 1, and insulating films 3 disposed at outer sides of the two electrode sheets 2, and bottoms of the two insulating films 3 at outer sides of the two electrode sheets 2 are connected to form a U-shaped structure.

The PTC heating assembly 100 further comprises a packaging frame 4, the packaging frame 4 is coated on the circumferential direction of the heating element 1 and is positioned between the two electrode plates 2, the packaging frame 4 is arranged on the PTC heating assembly 100, the packaging frame 4 is coated on the circumferential direction of the heating element 1, and the heating element 1 is connected with the packaging frame 4 through an insulating colloid 8 in the circumferential direction, so that the influence of external impurities can be effectively prevented, the sealing performance of the heating element 1 is enhanced, and the phenomena of electric arcs, electric flashover and the like are avoided; the phenomenon that the pressure resistance of the heating element 1 is poor and the PTC heating assembly 100 is broken down due to the fact that oxygen atoms inside the heating element 1 run out is avoided; the setting of encapsulation frame 4 is convenient for beat the operation of gluing, utilizes the solidification of colloid, makes to beat and glues more evenly, avoids causing the waste.

Preferably, the inner side of each insulating membrane 3 is provided with a heat-conducting glue layer 5, so that the gap between the electrode plate 2 and the insulating membrane 3 can be effectively filled, the heat-conducting efficiency is increased, the size change of the heating element 1 caused by expansion with heat and contraction with cold is absorbed, and the heating element 1 is prevented from being fractured.

As shown in fig. 3, a rib structure 6 is disposed on one side of the package frame 4 along the circumferential direction, and the rib structure 6 and the package frame 4 form a receiving area 7 for receiving the heating element 1, so as to facilitate receiving the heating element 1.

Further, a plurality of positioning protrusions 61 are arranged on the flange structure 6, and the plurality of positioning protrusions 61 are arranged along the circumferential direction of the flange structure 6. Heating element 1 contacts with each protruding 61 of location, form colloid runner 62 between each protruding 61 of location, the effect of going on fixing a position heating element 1 can be played in the setting of the protruding 61 of location, and form colloid runner 62 between each protruding 61 of location, insulating colloid 8 is directly filled in the colloid runner 62 between encapsulation frame 4 and heating element 1 under the molten condition, the setting of colloid runner 62 is convenient for do benefit to the solidification of colloid shaping, be convenient for to encapsulation frame 4 and heating element 1's connection.

Specifically, as shown in fig. 5, an insulating colloid 8 is punched around the heating element 1, the insulating colloid 8 is bonded with the peripheral side surfaces of the heating element 1 and the packaging frame 4, the thickness of the insulating colloid 8 is flush with the thickness of the heating element 10, two electrode plates 2 located on two sides of the packaging frame 4 can be bonded, the electrode plates 2 are formed, the packaging frame 4 and the heating element 1 are integrated, the deterioration of pressure resistance caused by the outward running of oxygen atoms inside the heating element 1 is effectively prevented, the insulation distance between the two electrode plates 2 can be effectively increased, and the insulation reliability is improved.

In order to facilitate the installation of the PTC heating assembly 100, as shown in fig. 2, 3 and 6, positioning posts 41 are disposed on both sides of the package frame 4, positioning holes 21 are correspondingly disposed on the electrode plates 2 on both sides of the package frame 4, and the positioning posts 41 are inserted into the positioning holes 21. The positioning columns 41 and the positioning holes 21 are arranged to align the packaging frame 4 and the electrode plate 2, so that the electrode plate can be installed quickly.

Specifically, the positioning holes 21 are formed in the lugs 22 of the electrode sheet 2, the bottom of the side, provided with the flange structure 6, of the packaging frame 4 is provided with a plurality of positioning columns 41, and accordingly the electrode sheet 2 of the side, provided with the flange structure 6, of the packaging frame 4 is provided with a plurality of positioning holes 21, so that the positioning sheets can be conveniently positioned. The two electrode plates 2 are respectively a first electrode plate and a second electrode plate, the electrode plate 2 on the side of the packaging frame 4 where the flange structure 6 is arranged is the first electrode plate, and the electrode plate 2 on the side of the packaging frame 4 where the flange structure 6 is not arranged is the second electrode plate. The lug 22 of the first electrode plate is provided with one positioning hole 21, the bottom of the first electrode plate is provided with three positioning holes 21 along the width direction of the first electrode plate, and the positioning of the first electrode plate is realized through the matching of the positioning holes 21 on the lug 22 of the first electrode plate and the positioning holes 21 at the bottom with the positioning columns 41 of the packaging frame 4. The lug 22 of the second electrode plate is provided with a positioning hole 21, the corresponding packaging frame 4 is provided with a positioning column 41, and the positioning and installation of the second electrode plate are realized through the matching of the positioning hole 21 and the positioning column 41.

Preferably, as shown in fig. 7 and 8, the lug 22 of the electrode tab 2 is higher than the package frame 4. The lugs 22 of the electrode pads 2 are raised above the package frame 4 to facilitate connection to other structures.

The present embodiment further provides a PTC heating package, as shown in fig. 9 to 13, the PTC heating package comprises the above-mentioned PTC heating assembly 100, a U-shaped clip device 200, a heating convex hull 300, and a pressing assembly 500, wherein the PTC heating assembly 100 is installed in the U-shaped clip device 200; an accommodating groove 301 is formed in the heating convex hull 300, the U-shaped clip device 200 with the PTC heating assembly 100 mounted thereon is inserted into the accommodating groove 301, and the U-shaped clip device 200 is pressed into the accommodating groove 301 by the pressing assembly 500. The assembled PTC heating packs are plugged onto the conduction assembly plate 400 for supplying power to the PTC heating packs. Preferably, a plurality of PTC heating packs may be plugged on the conduction group plate 400.

This PTC adds heat bag sealed effect and radiating effect are better, can avoid phenomenons such as electric arc, electric flashover, and pressure resistance is better, avoids taking place to puncture, can prevent that PTC heating element 100's heating element 1 from being fractured, prolongs PTC adds heat bag's life.

Further, as shown in fig. 9, the clevis device 200 includes a clevis body having a clevis structure, one side wall of the clevis body is a vertical plate 201, and an upper portion of the other side wall is bent outward of the clevis body to form a curved surface structure 202. According to the U-shaped clamping device 200, one side wall of the U-shaped clamping body is set to be the vertical plate 201, the upper portion of the other side wall is bent towards the outer side of the U-shaped clamping body to form the cambered surface structure 202, when the U-shaped clamping device 200 is installed in the PTC heating bag, the cambered surface structure 202 of the U-shaped clamping body can be tightly attached to the PTC heating assembly 100 through the pressing assembly 500, the heat conduction efficiency is improved, and gaps generated due to deformation of the U-shaped clamping body are effectively filled.

In the present embodiment, as shown in fig. 11, the pressing member 500 has a wedge-shaped structure, and when the U-shaped clip device 200 to which the PTC heating element 100 is attached is inserted into the receiving groove 301 of the heating protrusion 300, the pressing member 500 is inserted into the U-shaped clip device 200 to press the U-shaped clip device 200, so that the arc structure 202 and the riser 201 of the U-shaped clip body are both tightly attached to the PTC heating element 100. The side of the conduction group plate 400 where the conductive sheet is disposed is then directed toward the heating convex hull 300 and mounted on top of the heating convex hull 300.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a PTC heating element, includes heating element (1), sets up electrode slice (2) of heating element (1) both sides, and sets up two insulating diaphragm (3) in electrode slice (2) outside, its characterized in that still includes encapsulation frame (4), encapsulation frame (4) cladding is in the circumference of heating element (1), and is located two between the electrode slice (2).

2.PTC heating assembly according to claim 1, characterized in that the inner side of each insulating membrane (3) is provided with a layer (5) of heat-conducting glue.

3. PTC heating assembly according to claim 1, characterized in that the encapsulation frame (4) is provided with a rim structure (6) in its circumferential direction on one side, the rim structure (6) and the encapsulation frame (4) forming a receiving zone (7) for the heating element (1).

4. A PTC heating assembly according to claim 3, wherein the rib structure (6) is provided with a plurality of positioning protrusions (61), the heating element (1) is in contact with each positioning protrusion (61), and a gel flow channel (62) is formed between each positioning protrusion (61).

5. PTC heating assembly according to claim 4, characterized in that the glue channel (62) between the encapsulation frame (4) and the heating element (1) is configured to accommodate an insulating glue (8).

6. PTC heating assembly according to any of claims 1 to 5, characterized in that positioning posts (41) are arranged on both sides of the packaging frame (4), positioning holes (21) are correspondingly arranged on the electrode sheets (2) on both sides of the packaging frame (4), and the positioning posts (41) are arranged in the positioning holes (21).

7. PTC heating assembly according to any of claims 1 to 5, characterized in that the lugs (22) of the electrode sheet (2) are higher than the encapsulation frame (4).

8. PTC heating assembly according to any of claims 1 to 5, characterized in that the bottoms of the two insulating membranes (3) outside the two electrode sheets (2) are connected to form a U-shaped structure.

9. A PTC heating pack comprising the PTC heating assembly according to any one of claims 1 to 8, further comprising:

a U-shaped clip device (200) within which the PTC heating assembly (100) is mounted;

the heating convex hull (300) is provided with a containing groove (301) in the heating convex hull (300), the U-shaped clamp device (200) provided with the PTC heating assembly (100) is inserted in the containing groove (301), and the U-shaped clamp device (200) is pressed in the containing groove (301) through a pressing assembly (500).

10. The PTC heating pack according to claim 9, wherein the clevis means (200) includes a clevis body having a clevis structure, one side wall of which is a riser (201), and an upper portion of the other side wall of which is bent outward of the clevis body to form an arc structure (202).