CN210112303U - U-shaped clamping device for PTC heater and heating bag for PTC heater - Google Patents

Abstract

The utility model relates to a PTC heater spare part technical field discloses a PTC heater is with U type clamp device and PTC heater is with heating package, and PTC heater is with U type clamp device presss from both sides the main part including the U type that is U type structure, the U type presss from both sides the main part and is configured into the installation PTC subassembly, a lateral wall that the U type pressed from both sides the main part is the riser, the upper portion of another lateral wall to the U type presss from both sides the outside bending formation first cambered surface structure of main part. The utility model discloses a PTC is U type clamp device for heater when pressing from both sides the U type and install in PTC is with heating package, can be inseparable with the laminating of PTC subassembly through compressing tightly the first cambered surface structure that the subassembly pressed from both sides the main part with the U type, improves heat conduction efficiency, effectively fills the clearance of pressing from both sides the main part deformation production because of the U type. The utility model discloses a PTC is heat conduction efficiency of heating package for heater is higher, can prevent that the U type from pressing from both sides the device not hard up among the vibration process.

Description

U-shaped clamping device for PTC heater and heating bag for PTC heater

Technical Field

The utility model relates to a PTC heater spare part technical field especially relates to a PTC heater is with U type clamp device PTC heater with heating package.

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 shell for packaging the PTC heating element and the positive and negative electrode plates is generally packaged by adopting a clamping plate, and the clamping plate can be clamped in a sandwich mode, namely, two parallel vertical plates are extruded to form a fastened heating element. Then the heating element and the heating aluminum seat are fixedly installed, and the water source in the new energy automobile is heated. However, the two side walls of the clamping plate are aluminum sheets with the vertical plate structures, and the clamping plate is very easy to deform due to vibration in practical application, so that a gap is easily generated when the clamping plate is matched with a PTC assembly, and the heat conduction efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PTC is U type for heater presss from both sides device and PTC is heating package for heater, has improved heat conduction efficiency, effectively fills because of the clearance that the U type pressed from both sides the main part and warp the production.

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

the utility model provides a PTC is U type clamp device for heater, press from both sides the main part including the U type that is U type structure, the U type presss from both sides the main part and is configured into installation PTC subassembly, a lateral wall that the U type pressed from both sides the main part is the riser, and the upper portion that another lateral wall does to the outside bending of U type clamp main part forms first ARC structure.

This PTC is U type presss from both sides device for heater sets up one side wall of U type clamp main part as the riser, the upper portion of another side wall to the outside bending of U type clamp main part forms first cambered surface structure, when installing U type clamp device in PTC is with heating package, can be inseparable with the laminating of PTC subassembly with the first cambered surface structure of U type clamp main part through compressing tightly the subassembly, improves heat conduction efficiency, effectively fills up because of the clearance that U type clamp main part warp and produce.

In a preferred embodiment of the above-described U-shaped clip device for a PTC heater, a lower portion of the other side wall of the U-shaped clip body has a vertical plate structure, and the first curved surface structure is integrally formed with the vertical plate structure.

In a preferred embodiment of the above-described U-shaped clip device for a PTC heater, a lower portion of the other side wall of the U-shaped clip body has a second arc-shaped structure, and the second arc-shaped structure has the same curvature as the first arc-shaped structure.

As a preferable mode of the above-mentioned U-shaped clip device for a PTC heater, the two ends of the bottom of the U-shaped clip main body are provided with a limiting member, and the PTC component is disposed between the two limiting members.

The limiting piece is arranged to limit the PTC component arranged in the U-shaped clamp main body and prevent the PTC component from sliding; and the PTC component can be arranged in the middle of the U-shaped clamp main body in the assembling process.

In a preferred embodiment of the above-described U-shaped clip device for a PTC heater, the stopper has elasticity, and both of the stoppers are inclined in a direction away from the U-shaped clip main body from a bottom of the U-shaped clip main body toward a top of the U-shaped clip main body. This structure can effectively prevent to vibrate in-process U type clamp main part and take place not hard up.

In a preferred embodiment of the above-described U-shaped clip device for a PTC heater, the U-shaped clip body has a stopper structure provided on both sides of the vertical plate. The limiting structure is arranged to guide and limit the insertion of the pressing assembly.

As a preferable mode of the U-shaped clip device for the PTC heater, the limit structure is a flanged structure integrally formed with the vertical plate of the U-shaped clip main body. The structure is simple and easy to prepare.

In a preferred embodiment of the above-described U-shaped clip device for a PTC heater, the bottom of the U-shaped clip body is provided with a first through hole. The rigidity of the U-shaped clamp main body is reduced due to the arrangement of the first through holes, and the U-shaped clamp main body is bent and formed conveniently.

In a preferred embodiment of the above-described PTC heater clevis device, the first through-holes extend to both side walls of the clevis body across a bottom of the clevis body. This arrangement reduces the rigidity of the U-shaped clamp body, and easily realizes the bending operation of the U-shaped clamp body.

The utility model also provides a PTC heater is with heating package, press from both sides the device including foretell PTC heater is with U type, still include:

a PTC assembly mounted within the U-shaped clip device;

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

The heating bag for the PTC heater is high in heat conduction efficiency, and the U-shaped clamping device can be prevented from loosening in the vibration process.

The utility model has the advantages that:

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

The two ends of the bottom of the U-shaped clamp main body are provided with limiting pieces, the PTC component is arranged between the two limiting pieces, and the limiting pieces can limit the PTC component arranged in the U-shaped clamp main body to prevent the PTC component from sliding; and the PTC component can be arranged in the middle of the U-shaped clamp main body in the assembling process.

The utility model provides a PTC is heating package for heater, press from both sides device, heating convex closure, compress tightly the subassembly including foretell PTC heater with the U type, be provided with the storage tank in the heating convex closure, the U type presss from both sides the device and inserts and establish in the storage tank of heating convex closure to press from both sides the device with the U type through compressing tightly the subassembly and compress tightly in the storage tank. The heating bag for the PTC heater is high in heat conduction efficiency, and the U-shaped clamping device can be prevented from loosening in the vibration process.

Drawings

Fig. 1 is a schematic structural view of a PTC component mounted with a U-shaped clip device for a PTC heater according to a first embodiment of the present invention;

fig. 2 is a side view of a U-shaped clip device for a PTC heater according to a first embodiment of the present invention;

fig. 3 is a schematic structural view of a U-shaped clip device for a PTC heater according to a first embodiment of the present invention;

fig. 4 is a front view of a U-shaped clip device for a PTC heater according to a first embodiment of the present invention;

fig. 5 is a diagram of a PTC component and a U-shaped clamping device for a PTC heater according to a first embodiment of the present invention to be assembled;

fig. 6 is a side view of a U-shaped clip device for a PTC heater according to a second embodiment of the present invention;

fig. 7 is a schematic structural view of a mounting U-shaped clip device of a heating bag for a PTC heater and a PTC component according to a third embodiment of the present invention;

fig. 8 is a schematic view of a structure to be assembled of a heating pack and a conduction assembly plate for a PTC heater according to a third embodiment of the present invention;

fig. 9 is a schematic structural view of a heating pack for a PTC heater according to a third embodiment of the present invention mounted on a conduction group plate;

fig. 10 is a sectional view of the heating pack for the PTC heater according to the third embodiment of the present invention mounted on the conduction block plate.

In the figure:

1. a U-shaped clamp device; 11. a U-shaped clamp body; 111. a vertical plate; 112. a first cambered surface structure; 113. a first through hole; 12. a limiting member; 13. a limiting structure; 131. an aperture;

2. heating the convex hull; 21. a containing groove;

3. a compression assembly;

4. conducting the group plate; 41. a conductive sheet;

5. a PTC component 51, a positive electrode sheet; 52. a negative electrode plate; 53. a heating element; 54. an insulating heat-conducting composite film; 55. an upper insulating support; 56. a lower insulating support; 57. a first tab; 58. a second insert.

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 first implementation mode comprises the following steps:

the present embodiment provides a U-shaped clip device for a PTC heater, which is used to mount a PTC component. As shown in fig. 1 to 4, the hairpin device 1 includes a hairpin body 11 having a hairpin structure, the hairpin body 11 being configured to mount the PTC component 5, one side wall of the hairpin body 11 being a riser 111, and an upper portion of the other side wall being bent outward of the hairpin body 11 to form a first arc-surface structure 112. Preferably, in the present embodiment, the lower portion of the other side wall of the hairpin body 11 is a riser structure, and the first cambered surface structure 112 is integrally formed with the riser structure. According to the U-shaped clamping device 1 for the PTC heater, one side wall of the U-shaped clamping body 11 is set to be the vertical plate 111, the upper part of the other side wall is bent towards the outer side of the U-shaped clamping body 11 to form the first cambered surface structure 112, when the U-shaped clamping device 1 is installed in a heating bag for the PTC heater, the first cambered surface structure 112 and the vertical plate 111 of the U-shaped clamping body 11 can be tightly attached to the PTC component 5 through the pressing component 3, the heat conduction efficiency is improved, and gaps generated by deformation of the U-shaped clamping body 11 are effectively filled; meanwhile, when the U-shaped clamp device 1 is installed in the heating bag for the PTC heater, the U-shaped clamp body 11 has certain reverse elasticity, and can effectively prevent the PTC assembly 5 from loosening due to clearance generated when the PTC assembly 5 expands with heat and contracts with cold, thereby improving the reliability of the fixing strength of the PTC assembly 5 in the use process.

As shown in fig. 5, the PTC assembly 5 includes a positive electrode sheet 51, a negative electrode sheet 52, a heating element 53 and an insulating heat-conducting composite film 54, the positive electrode sheet 51 and the negative electrode sheet 52 are disposed oppositely, a first tab 57 is disposed on the positive electrode sheet 51, a second tab 58 is disposed on the negative electrode sheet 52, the insulating heat-conducting composite film 54 is coated on two sides of the heating element 53, and the positive electrode sheet 51 and the negative electrode sheet 52 are disposed on two sides of the heating element 53 coated with the insulating heat-conducting composite film 54. The upper end of the heating element 53 is provided with an upper insulating support 55, and the lower end thereof is provided with a lower insulating support 56.

As shown in fig. 1 to 4, the two ends of the bottom of the U-shaped clamp body 11 are provided with the limiting members 12, and the PTC component 5 is disposed between the two limiting members 12, so that the PTC component 5 mounted in the U-shaped clamp body 11 can be limited, and the PTC component 5 is prevented from sliding, thereby ensuring that the PTC component 5 is in full contact with the first arc-shaped structure 112 and the vertical plate 111 of the U-shaped clamp body 11, and further ensuring the heat conduction effect; and the PTC component 5 can be arranged in the middle of the U-shaped clamp main body 11 in the process of assembling the PTC component 5, so that the consistency of the PTC component 5 and the conduction group plate 4 during assembling is ensured, and the PTC component 5 does not interfere with the conduction group plate 4 during plug-in connection due to slippage of the PTC component 5 (see fig. 8).

Preferably, the limiting members 12 have elasticity, and both the limiting members 12 are inclined from the bottom of the hairpin main body 11 to the top of the hairpin main body 11 in a direction away from the hairpin main body 11, so that the hairpin main body 11 can be effectively prevented from loosening during vibration.

As shown in fig. 1-4, the U-shaped clamp body 11 is provided with a limiting structure 13 on both sides of the vertical plate 111 for guiding and limiting the insertion of the pressing assembly 3. Preferably, the limiting structure 13 is a flanging structure integrally formed with the vertical plate 111 of the clevis body 11. The structure is simple and easy to prepare. Preferably, the cuff structure is provided with a plurality of holes 131 along its length to reduce the weight of the clevis device 1.

As shown in fig. 4, two stoppers 12 at the bottom of the clevis body 11 are symmetrically disposed. The two limiting parts 12 are symmetrically arranged, so that the appearance is attractive, and the stress of the U-shaped clamp device 1 is uniform in the installation process.

Further, as shown in fig. 3 and 4, the bottom of the clevis body 11 is provided with a first through hole 113. The first through hole 113 reduces the rigidity of the hairpin body 11, and facilitates the bending of the hairpin body 11. Preferably, the first through hole 113 spans the bottom of the clevis body 11 and extends to both sidewalls of the clevis body 11. This arrangement reduces the rigidity of the hairpin body 11, and facilitates the bending operation of the hairpin body 11. In this embodiment, the bottom of the hairpin body 11 is provided with a plurality of first through holes 113, and the plurality of first through holes 113 are arranged in the longitudinal direction of the bottom of the hairpin body 11.

When the U-shaped clamping device 1 is plugged into the compressing assembly 3 to be compressed in the using process, the U-shaped clamping device 1 and the PTC assembly 5 can be attached more tightly, the problem that the attaching surfaces of the PTC assembly 5 and the attaching surface of the U-shaped clamping device 1 are attached to each other in the middle of the attaching surface is solved, the attaching reliability between the surfaces is enhanced, and therefore the heating efficiency is improved.

The U-shaped clamping device 1 with the first cambered surface structure 112 has certain reverse elasticity during installation, and can effectively prevent the PTC component 5 from generating a gap and loosening during expansion with heat and contraction with cold, thereby improving the reliability of the fixing strength of the PTC component 5 in the use process;

in practical application, the U-shaped clip device 1 with the first arc-shaped structure 112 has strong adaptability, and cannot deform due to vibration or the like, so that a gap exists between the attaching surface of the PTC component 5 and the attaching surface of the U-shaped clip device 1, and the attaching effect is poor.

The second embodiment:

the present embodiment provides a U-shaped clip device for a PTC heater, which is different from the first embodiment in the structure of the other side wall of the U-shaped clip body 11, as shown in fig. 6, in the present embodiment, the lower portion of the other side wall of the U-shaped clip body 11 is a second arc structure, the second arc structure and the first arc structure 112 are integrally formed, and the second arc structure has the same curvature as the first arc structure 112, and the U-shaped clip device has the advantages of simple structure, convenient manufacture, close adhesion with the PTC component 5, improved heat conduction efficiency, and effective filling of the gap generated by the deformation of the U-shaped clip body 11.

The third embodiment is as follows:

the present embodiment further provides a heating package for a PTC heater, as shown in fig. 7-10, which includes a U-shaped clip device 1 for a PTC heater according to the first embodiment or the second embodiment, a heating convex hull 2, a pressing component 3 and a conduction assembly plate 4, wherein an accommodating groove 21 is provided in the heating convex hull 2, the U-shaped clip device 1 is inserted into the accommodating groove 21 of the heating convex hull 2, and the pressing component 3 presses the U-shaped clip device 1 into the accommodating groove 21. And inserting the assembled heating bag for the PTC heater on the conduction group plate 4 for supplying power to the heating bag for the PTC heater. Preferably, a plurality of PTC heaters can be plugged onto the conduction group plate 4 with a heating pack.

Specifically, in the present embodiment, the pressing member 3 is a wedge-shaped structure, and when the U-shaped clip device 1 with the PTC device 5 mounted thereon is inserted into the accommodating groove 21 of the heating convex hull 2, the pressing member 3 is inserted into the limit structure 13 of the U-shaped clip device 1 to press the U-shaped clip device 1, so that the first arc-shaped structure 112 and the vertical plate 111 of the U-shaped clip main body 11 are both tightly attached to the PTC device 5. Then, the side of the conduction group plate 4 provided with the conducting strip 41 faces the heating convex hull 2 and is installed on the top of the heating convex hull 2, and the first inserting sheet 57 and the second inserting sheet 58 penetrate through the conduction group plate 4.

The heating bag for the PTC heater is high in heat conduction efficiency, and the U-shaped clamping device 1 can be prevented from loosening in the vibration process.

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 (10)

1. A U-shaped clamp device for a PTC heater comprises a U-shaped clamp body (11) in a U-shaped structure, wherein the U-shaped clamp body (11) is configured to be used for installing a PTC assembly (5), and is characterized in that one side wall of the U-shaped clamp body (11) is a vertical plate (111), and the upper part of the other side wall is bent towards the outer side of the U-shaped clamp body (11) to form a first cambered surface structure (112).

2. A U-shaped clip device for a PTC heater according to claim 1, wherein the lower portion of the other side wall of the U-shaped clip main body (11) is a riser structure, and the first arc surface structure (112) is integrally formed with the riser structure.

3. A U-shaped clip device for a PTC heater according to claim 1, wherein the lower portion of the other side wall of the U-shaped clip body (11) is a second arc-shaped structure having the same curvature as the first arc-shaped structure (112).

4. A U-shaped clip device for a PTC heater according to claim 1, wherein both ends of the bottom of the U-shaped clip main body (11) are provided with stoppers (12), and the PTC assembly (5) is disposed between the stoppers (12).

5. A U-shaped clip device for a PTC heater according to claim 4, wherein the stoppers (12) have elasticity, and both stoppers (12) are inclined in a direction away from the U-shaped clip body (11) from the bottom of the U-shaped clip body (11) to the top of the U-shaped clip body (11).

6. A U-shaped clip device for a PTC heater according to claim 1, wherein a stopper structure (13) is provided on both sides of the riser (111) of the U-shaped clip main body (11).

7. A U-shaped clip device for a PTC heater according to claim 6, wherein the stopper structure (13) is a burring structure formed integrally with the riser (111) of the U-shaped clip main body (11).

8. A U-shaped clip device for a PTC heater according to any of claims 1-7, characterized in that the bottom of the U-shaped clip body (11) is provided with a first through hole (113).

9. The hairpin device for a PTC heater according to claim 8, wherein the first through hole (113) spans a bottom of the hairpin body (11) and extends to both side walls of the hairpin body (11).

10. A heating pack for a PTC heater, comprising the U-shaped clip device for a PTC heater according to any one of claims 1 to 9, further comprising:

a PTC assembly (5), said PTC assembly (5) being mounted within said U-shaped clip device (1);

the heating convex hull (2), be provided with storage tank (21) in the heating convex hull (2), install PTC subassembly (5) U type clamp device (1) insert establish in storage tank (21), and will through compressing tightly subassembly (3) U type clamp device (1) compress tightly in storage tank (21).

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