Low-voltage PTC heater with insulating film

Abstract

The utility model discloses a low pressure PTC heater of pasting insulating film, including the horizontal arrangement plastic shell one and vertical arrangement plastic shell two, the plastic shell two is located plastic shell one's bottom, be equipped with PTC heating core body in the plastic shell two, the PTC heating core body includes plastic support, be equipped with three groups of even distribution's PTC heating assembly on the plastic support, the both sides of PTC heating assembly in the plastic support correspond respectively are equipped with single corrugated strip and double corrugated strip. Through the PTC sheet and ceramic substrate of PTC electrode plate support one side of inlay piece put, the other side pastes insulating film, to form a positive pole, negative pole is a double corrugated strip and impact terminal through rivet and form negative pole, three positive poles and two negative poles form loop, realize work, solved the original pasting insulating film one side is PTC electrode plate support with groove position, place six ceramic substrates, now adjust pasting insulating film, and single heating assembly saves six ceramic substrates, and cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of low-pressure PTC heater technology, and more specifically, to a low-pressure PTC heater with an insulating film attached. Background Technology

[0002] In the absence of engine waste heat, electronic heating products are needed to provide heat for winter vehicle heating, defrosting and defogging safety requirements, and the short lifespan of power batteries at low temperatures. PTC heaters are a good choice, and new energy vehicles require PTC heaters for their air conditioning systems.

[0003] For new energy vehicles, the positive electrode of the existing low-pressure heater is mostly a PTC electrode plate bracket with slots on both sides to hold PTC plates and ceramic substrates. It requires 12 sets of ceramic substrates, which consumes a lot of energy, affects the range, and has a high cost.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a low-pressure PTC heater with an insulating film to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A low-pressure PTC heater with an insulating film includes a horizontally arranged plastic shell one and a vertically arranged plastic shell two, the plastic shell two being located at the bottom end of the plastic shell one, and a PTC heating core being disposed inside the plastic shell two;

[0008] The PTC heating core includes a plastic bracket, on which three sets of evenly distributed PTC heating elements are provided. Single corrugated strips and double corrugated strips are respectively provided on both sides of the PTC heating elements inside the plastic bracket. A stamped terminal is provided at the top of the plastic bracket and between each pair of PTC heating elements. The stamped terminal is connected to the plastic bracket by a rivet.

[0009] As a priority, the three sets of PTC heating components (4) and the two sets of stamped terminals are arranged from right to left as PTC1+, PTC2-, PTC3+, PTC4- and PTC5+.

[0010] As a preferred embodiment, the PTC heating element of the PTC1+ includes an insert PTC electrode plate bracket, which is composed of an electrode plate and a plastic bracket.

[0011] As a preferred feature, the insert PTC electrode plate support has six slots on one side for placing PTC plates and ceramic substrates.

[0012] As a preferred option, an insulating film is provided on the other side of the insert PTC electrode plate support.

[0013] Preferably, one side of the insulating film is adhered to the insert PTC electrode plate support, and the other side of the film is close to the aluminum tube.

[0014] Preferably, one end of PTC1+ is connected to PTC2-, and a heating element is provided between PTC1+ and PTC2-;

[0015] One end of the PTC3+ is connected to the second heating element, and the other end of the second heating element is connected to the PTC4- and the third heating element respectively;

[0016] The other end of the heating element three is connected to the PTC5+.

[0017] As a preferred option, the two negative terminals of PTC2- and PTC4- are not connected in parallel, so that PTC2- can be used with PTC1+, and PTC4- can be used with PTC3+ and PTC5+.

[0018] As a preferred option, both the side of the first plastic shell and the bottom of the second plastic shell are provided with PU sponge.

[0019] The beneficial effects of this utility model are as follows: By placing a PTC sheet and a ceramic substrate on one side of the PTC electrode plate bracket and attaching an insulating film to the other side, a positive electrode is formed. The negative electrode is formed by a double corrugated strip and an impact terminal through rivets. The three positive electrodes and two negative electrodes form a circuit to achieve operation. This solves the problem that the original PTC electrode plate bracket with slots on the side with the insulating film had to hold six ceramic substrates. By adjusting the insulating film, six ceramic substrates are saved for a single heating element, reducing costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a low-pressure PTC heater with an insulating film according to an embodiment of the present invention;

[0022] Figure 2This is a schematic diagram of the structure of the PTC heating core in a low-pressure PTC heater with an insulating film according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a PTC electrode plate support in a low-pressure PTC heater with an insulating film according to an embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of a PTC electrode plate support insert in a low-pressure PTC heater with an insulating film according to an embodiment of the present invention;

[0025] Figure 5 This is a circuit diagram of a low-voltage PTC heater with an insulating film according to an embodiment of the present utility model;

[0026] In the picture:

[0027] 1. Plastic shell one; 2. Plastic shell two; 3. PTC heating core; 4. PTC heating element; 5. Single corrugated strip; 6. Double corrugated strip; 7. Stamped terminal; 8. PTC electrode plate bracket with insert; 9. Electrode plate; 10. Plastic bracket; 11. PTC sheet; 12. Ceramic substrate; 13. Insulating film; 14. PU sponge; 15. Rivet. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present invention, a low-pressure PTC heater with an insulating film is provided.

[0030] Example 1:

[0031] like Figure 1-5 As shown, the low-voltage PTC heater with insulating film according to an embodiment of the present utility model includes a horizontally arranged plastic shell 1 and a vertically arranged plastic shell 2. The plastic shell 2 is located at the bottom end of the plastic shell 1, and a PTC heating core 3 is provided inside the plastic shell 2.

[0032] The PTC heating core 3 includes an insert PTC electrode plate bracket 8. The PTC electrode plate bracket 8 is provided with three sets of evenly distributed PTC heating components 4. Single corrugated strips 5 and double corrugated strips 6 are respectively provided on both sides of the PTC heating components 4 in the PTC electrode plate bracket 8. A stamped terminal 7 is provided at the top of the PTC electrode plate bracket 8 and between each pair of PTC heating components 4. The stamped terminal 7 is connected to the PTC electrode plate bracket 8 by a rivet 15.

[0033] Example 2:

[0034] like Figure 1-5 As shown, the three sets of PTC heating elements 4 and the two sets of stamped terminals 7 are formed from right to left as PTC1+, PTC2-, PTC3+, PTC4- and PTC5+.

[0035] The PTC heating element 4 of the PTC1+ includes an insert PTC electrode plate bracket 8, which is composed of an electrode plate 9 and a plastic bracket 10.

[0036] Example 3:

[0037] like Figure 1-5 As shown, the PTC electrode plate support 8 has six slots on one side for placing the PTC sheet 11 and the ceramic substrate 12.

[0038] An insulating film 13 is provided on the other side of the insert PTC electrode plate support 8.

[0039] One side of the insulating film 13 is adhered to the insert PTC electrode plate support 8, and the other side of the film is close to the aluminum tube.

[0040] One end of PTC1+ is connected to PTC2-, and a heating element is provided between PTC1+ and PTC2-;

[0041] One end of the PTC3+ is connected to the second heating element, and the other end of the second heating element is connected to the PTC4- and the third heating element respectively;

[0042] The other end of the heating element three is connected to the PTC5+.

[0043] The two negative electrodes of PTC2- and PTC4- are not connected in parallel, so that PTC2- can be used with PTC1+, and PTC4- can be used with PTC3+ and PTC5+.

[0044] The side of the plastic shell 1 and the bottom of the plastic shell 2 are each provided with PU sponge 14.

[0045] In summary, by utilizing the above-mentioned technical solution of this utility model, a positive electrode is formed by placing a PTC sheet and a ceramic substrate on one side of the PTC electrode plate bracket 8 and attaching an insulating film to the other side. The negative electrode is formed by a double corrugated strip and an impact terminal through rivets. The three positive electrodes and two negative electrodes form a circuit to achieve operation. This solves the problem that the original PTC electrode plate bracket with a slot on the side with the insulating film had to hold six ceramic substrates. By adjusting the insulating film, six ceramic substrates are saved for a single heating element, reducing costs.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-pressure PTC heater with an insulating film, characterized in that, It includes a horizontally arranged plastic shell one (1) and a vertically arranged plastic shell two (2), the plastic shell two (2) being located at the bottom end of the plastic shell one (1), and a PTC heating core (3) being provided inside the plastic shell two (2); The PTC heating core (3) includes a plastic bracket (10), on which three sets of evenly distributed PTC heating elements (4) are provided. Inside the plastic bracket (10), on both sides of the PTC heating elements (4), there are single corrugated strips (5) and double corrugated strips (6). At the top of the plastic bracket (10) and between the two PTC heating elements (4), there is a stamped terminal (7). The stamped terminal (7) is connected to the plastic bracket (10) by a rivet (15).

2. A low-pressure PTC heater with an insulating film as described in claim 1, characterized in that, The three sets of PTC heating elements (4) and the two sets of stamped terminals (7) are formed from right to left as PTC1+, PTC2-, PTC3+, PTC4- and PTC5+.

3. A low-pressure PTC heater with an insulating film according to claim 2, characterized in that, The PTC heating component (4) of the PTC1+ includes an insert PTC electrode plate bracket (8), which is composed of an electrode plate (9) and a plastic bracket (10).

4. A low-pressure PTC heater with an insulating film according to claim 3, characterized in that, The insert PTC electrode plate support (8) has six slots on one side for placing PTC plates (11) and ceramic substrates (12).

5. A low-pressure PTC heater with an insulating film according to claim 4, characterized in that, An insulating film (13) is provided on the other side of the insert PTC electrode plate support (8).

6. A low-pressure PTC heater with an insulating film according to claim 5, characterized in that, One side of the insulating film (13) is adhered to the insert PTC electrode plate support (8), and the other side of the light film is close to the aluminum tube.

7. A low-pressure PTC heater with an insulating film according to claim 6, characterized in that, One end of PTC1+ is connected to PTC2-, and a heating element is provided between PTC1+ and PTC2-; One end of the PTC3+ is connected to the second heating element, and the other end of the second heating element is connected to the PTC4- and the third heating element respectively; The other end of the heating element three is connected to the PTC5+.

8. A low-pressure PTC heater with an insulating film according to claim 7, characterized in that, The two negative electrodes of PTC2- and PTC4- are not connected in parallel, so that PTC2- can be used with PTC1+, and PTC4- can be used with PTC3+ and PTC5+.

9. A low-pressure PTC heater with an insulating film according to claim 1, characterized in that, The side of the first plastic shell (1) and the bottom of the second plastic shell (2) are respectively provided with PU sponge (14).

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