A heater for an integrated welding electrode
The integrated welded electrode structure simplifies the manufacturing process of PTC heaters, enables stable connection and convenient installation of electrode strips, reduces production costs, and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽省宁国市天成电气有限公司
- Filing Date
- 2025-03-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing PTC heaters have complex structures, use a variety of materials, and have complex production processes, resulting in high production costs.
The electrode adopts an integrated welding electrode structure, and the electrode strip can be connected to the electrical connector with only one welding. The electrode strip is formed by multiple bending to make the welding part and the main body integrally formed, which simplifies the production process.
It improves production efficiency, reduces production costs, and facilitates easy adjustment and stable connection through the multiple bending of the electrode strip, thus reducing installation difficulty.
Smart Images
Figure CN224583341U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of PTC heater technology, and relates to a heater, specifically a heater with an integrated welding electrode. Background Technology
[0002] In the era of new energy vehicles, PTC heaters have replaced traditional water heaters, solving the problem of insufficient heating after the car engine is started. PTC heaters use PTC ceramic heating elements, which have advantages such as low thermal resistance and high heat exchange efficiency. They are automatic temperature-controlled, energy-saving electric heaters. A key feature is their safety performance; under any application, they will not exhibit the surface "reddening" phenomenon seen in electric heating tube heaters, thus avoiding burns, fires, and other safety hazards. However, existing PTC electric heaters have complex structures, use a variety of materials, and have complex manufacturing processes, resulting in high production costs. Utility Model Content
[0003] To address the technical problems existing in the background art, this utility model proposes a heater with an integrated welding electrode. The electrode strip can be connected to the electrical connector with only one welding, resulting in a stable connection, simplifying the production process, and reducing production costs.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A heater for an integrated welding electrode includes: heating tubes, heat dissipation fins, electrical connectors, electrode strips, and electrode plates. The heaters are arranged with N (N being a natural number) heating tubes and N+ heat dissipation fins. The N heating tubes are spaced apart between the N+ heat dissipation fins. Each heating tube has a heat dissipation fin connected to both sides. The N heating tubes are connected in parallel via the electrode strips. The heating tubes are electrically connected to the electrode strips via electrical connectors at their ends. The electrode strips have N welding portions that correspond one-to-one with the electrical connectors, and a main body connecting the N welding portions. The welding portions and the main body are integrally formed. One end of the electrode plate is connected to the main body of the electrode strip, and the other end is electrically connected to a control power supply.
[0006] Furthermore, the electrical connectors include positive and negative terminals, and the electrode strips include positive and negative electrode strips. The positive electrode strips connect the positive terminals of the N electrical connectors, and the negative electrode strips connect the negative terminals of the N electrical connectors.
[0007] Furthermore, the electrode sheet includes a positive electrode sheet and a negative electrode sheet, with one end of the positive electrode sheet engaging with the main body of the positive electrode strip and one end of the negative electrode sheet engaging with the main body of the negative electrode strip.
[0008] Furthermore, the positive electrode strip has the same structure as the negative electrode strip. The main body is a linear strip structure, and the welding part is formed by bending the main body counterclockwise by 90 degrees at the first inflection point, bending clockwise by 180 degrees at the second inflection point, and bending counterclockwise by 90 degrees at the third inflection point to form a U-shaped protrusion. The first inflection point and the third inflection point are on a straight line.
[0009] Furthermore, the heating element includes: an aluminum tube and a PTC ceramic element. The PTC ceramic element is disposed inside the inner cavity of the aluminum tube, and an electrical connector is disposed at one end of the aluminum tube. The PTC ceramic element is electrically connected to the positive terminal of the electrical connector through a positive contact, and the PTC ceramic element is electrically connected to the negative terminal of the electrical connector through a negative contact.
[0010] Furthermore, the positive terminal of the electrical connector has a first socket, and the positive contact is inserted into the first socket to connect with the positive terminal. The negative terminal of the electrical connector has a second socket, and the negative contact is inserted into the second socket to connect with the negative terminal.
[0011] Furthermore, insulating materials are filled between the PTC ceramic element and the aluminum tube, between the aluminum tube and the electrical connector, and between the positive and negative terminals. The insulating materials are polyimide film, alumina substrate, or thermally conductive silicone sheet.
[0012] Furthermore, the heat dissipation fins adopt a heat dissipation corrugated structure, and the crests and troughs of the heat dissipation fins are connected to the heating tube by brazing or adhesive bonding.
[0013] The beneficial effects of this utility model are as follows: The heater with an integrated welding electrode provided in this application has multiple electrical connectors at the ends of heating tubes connected in parallel by electrode strips. The electrode strips have multiple welding parts that correspond one-to-one with the electrical connectors and a main body connecting the multiple welding parts. By integrally forming the welding parts of the electrode strips with the main body, compared with the traditional electrode strips that connect electrical connectors by welding L-angles, the electrode strips of this application only need to be welded once to connect to the electrical connectors. The connection is stable, and the installation is convenient and quick. Furthermore, the welding parts can be formed by bending the main body three times. In actual use, the position of the welding parts of the electrode strips on the main body can be adjusted at any time according to the specific distribution of the heating tubes, which greatly reduces the difficulty of installing the electrode strips, improves production efficiency, and reduces production costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a cross-sectional view of the present invention.
[0016] Figure 3 This is a side view of the heating tube of this utility model.
[0017] Figure 4This is a side view of the electrical connector of this utility model.
[0018] Figure 5 This is a schematic diagram of the electrode strip of this utility model.
[0019] Figure 6 This is a schematic diagram of the welding of the electrode strip of this utility model. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1-6 As shown, this utility model provides a heater for an integrated welding electrode, including: a heating tube 1, heat dissipation fins 2, an electrical connector 3, an electrode strip 4, and an electrode sheet 5.
[0022] The heating element 1 includes an aluminum tube 11 and a PTC ceramic element 12. The PTC ceramic element 12 is disposed inside the inner cavity of the aluminum tube 11. An electrical connector 3 is disposed at one end of the aluminum tube 11. The electrical connector 3 includes a positive connector 31 and a negative connector 32. The PTC ceramic element 12 is electrically connected to the positive connector 31 of the electrical connector 3 through a positive contact 13, and the PTC ceramic element 12 is electrically connected to the negative connector 32 of the electrical connector 3 through a negative contact 14. Specifically, the positive connector 31 of the electrical connector 3 has a first socket 33, and the positive contact 13 is inserted into the first socket 33 to connect with the positive connector 31. The negative connector 32 of the electrical connector 3 has a second socket 34, and the negative contact 14 is inserted into the second socket 34 to connect with the negative connector 32.
[0023] Insulating material 15 is filled between the PTC ceramic element 12 and the aluminum tube 11, between the aluminum tube 11 and the electrical connector 3, and between the positive terminal connector 31 and the negative terminal connector 32. The insulating material 15 is a polyimide film, an alumina substrate, or a thermally conductive silicone sheet. Specifically, the insulating material 15 is wrapped around the PTC ceramic element 12, the positive terminal connector 31, and the negative terminal connector 32, which improves the bonding between the PTC heating element 12 and the aluminum tube 11 and enhances the heat transfer performance.
[0024] Five heating tubes 1 and six heat dissipation fins 2 are arranged at intervals between the five heating tubes 1 and the six heat dissipation fins 2. Each heating tube 1 is connected to a heat dissipation fin 2 on both sides, which greatly enhances the heat dissipation effect, enabling the heater to achieve greater power and improve the heating effect. The heat dissipation fins 2 adopt a corrugated structure, and the crests and troughs of the heat dissipation fins 2 are connected to the heating tubes 1 by brazing or gluing. The use of corrugated heat dissipation fins 3 effectively increases the heat dissipation area, allowing sufficient heat transfer between the heating tubes 1 and the heat dissipation fins 2, further improving the heating effect. Specifically, a thin aluminum sheet connects the heat dissipation fins 2 and the aluminum tube 11 of the heating tubes 1. The heat dissipation fins 2 are connected to the thin aluminum sheet by brazing or gluing, and the thin aluminum sheet is then connected to the aluminum tube 11 by brazing or gluing. During manufacturing, the heat dissipation fins 2 and the thin aluminum sheet can be first brazed or glued together as one piece, and then brazed or glued together to the aluminum tube 11, improving manufacturing convenience.
[0025] The five heating tubes 1 are connected in parallel via electrode strips 4. Specifically, the five heating tubes 1 are electrically connected to the electrode strips 4 via electrical connectors 3 at their ends. The electrode strips 4 include a positive electrode strip 46 and a negative electrode strip 47. The positive electrode strip 46 connects the positive terminals 31 of the five electrical connectors 3, and the negative electrode strip 47 connects the negative terminals 32 of the five electrical connectors 3.
[0026] The positive electrode strip 46 and the negative electrode strip 47 have the same structure. They both have five welding parts 41 that are welded one-to-one with the electrical connector 3 and a main body 42 that connects the five welding parts 41. The welding parts 41 and the main body 42 are integrally formed. Specifically, the main body 42 has a strip-shaped linear structure. The welding parts 41 are formed by bending the main body 42 counterclockwise by 90 degrees at the first inflection point 43, bending it clockwise by 180 degrees at the second inflection point 44, and bending it counterclockwise by 90 degrees at the third inflection point 45 to form a U-shaped protrusion. The first inflection point 43 and the third inflection point 45 are on a straight line. Traditional electrode strips are connected to electrical connectors by welding L-angles. During installation, the L-angles need to be welded first, and then the electrode strip is welded. In this application, the welding part 41 of the electrode strip 4 is integrally formed with the main body 42. It can be connected to the electrical connector 3 with only one welding. The connection is stable and the installation is convenient and quick. Furthermore, the welding part 41 can be formed by bending the main body 42 three times. In actual use, the position of the welding part 41 of the electrode strip 4 on the main body 42 can be adjusted at any time according to the specific distribution of the heating tubes 1. This greatly reduces the difficulty of installing the electrode strip, improves production efficiency, and reduces production costs.
[0027] The electrode plate 5 includes a positive electrode plate 51 and a negative electrode plate 52. One end of the positive electrode plate 51 is engaged with the main body 42 of the positive electrode strip 43, and the other end is electrically connected to the control power supply. One end of the negative electrode plate 52 is engaged with the main body 42 of the negative electrode strip 44, and the other end is electrically connected to the control power supply, thereby realizing the power supply control of the heating tube 1.
[0028] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A heater for an integrated welding electrode, characterized by, include: The heating tubes (1), heat dissipation fins (2), electrical connectors (3), electrode strips (4), and electrode plates (5) are arranged in a series of components. There are N heating tubes (1) and N+1 heat dissipation fins (2), where N is a natural number. The N heating tubes (1) are spaced apart between the N+1 heat dissipation fins (2). Each heating tube (1) is connected to a heat dissipation fin (2) on both sides. The N heating tubes (1) are connected in parallel through the electrode strips (4). The heating tubes (1) are electrically connected to the electrode strips (4) through the electrical connectors (3) at their ends. The electrode strips (4) have N welding points that correspond one-to-one with the electrical connectors (3). The part (41) and the main body (42) connecting the N welding parts (41) are integrally formed with the main body (42). One end of the electrode sheet (5) is connected to the main body (42) of the electrode strip (4), and the other end is electrically connected to the control power supply. The main body (42) is a strip linear structure. The welding part (41) is formed by bending the main body (42) counterclockwise by 90 degrees at the first inflection point (43), bending it clockwise by 180 degrees at the second inflection point (44), and bending it counterclockwise by 90 degrees at the third inflection point (45) to form a U-shaped protrusion. The first inflection point (43) and the third inflection point (45) are on a straight line.
2. The heater of claim 1, wherein The electrical connector (3) includes a positive connector (31) and a negative connector (32). The electrode strip (4) includes a positive strip (46) and a negative strip (47). The positive strip (46) connects the positive connectors (31) of the N electrical connectors (3), and the negative strip (47) connects the negative connectors (32) of the N electrical connectors (3). The positive strip (46) and the negative strip (47) have the same structure.
3. The heater of claim 2, wherein, The electrode sheet (5) includes a positive electrode sheet (51) and a negative electrode sheet (52). One end of the positive electrode sheet (51) is engaged with the main body (42) of the positive electrode strip (46), and one end of the negative electrode sheet (52) is engaged with the main body (42) of the negative electrode strip (47).
4. The heater of claim 1, wherein The heating tube (1) includes: an aluminum tube (11) and a PTC ceramic element (12). The PTC ceramic element (12) is disposed inside the inner cavity of the aluminum tube (11). The electrical connector (3) is disposed at one end of the aluminum tube (11). The PTC ceramic element (12) is electrically connected to the positive terminal (31) of the electrical connector (3) through the positive terminal contact (13). The PTC ceramic element (12) is electrically connected to the negative terminal (32) of the electrical connector (3) through the negative terminal contact (14).
5. The heater of claim 4, wherein, The positive terminal of the electrical connector (3) is provided with a first socket (33), and the positive contact (13) is inserted into the first socket (33) and connected to the positive terminal (31). The negative terminal of the electrical connector (3) is provided with a second socket (34), and the negative contact (14) is inserted into the second socket (34) and connected to the negative terminal (32).
6. The heater of claim 4, wherein, Insulating material (15) is filled between the PTC ceramic element (12) and the aluminum tube (11), between the aluminum tube (11) and the electrical connector (3), and between the positive terminal connector (31) and the negative terminal connector (32). The insulating material (15) is a polyimide film, an alumina substrate, or a thermally conductive silicone sheet.
7. The heater of claim 1, wherein The heat dissipation fin (2) adopts a heat dissipation corrugated structure, and the peaks and valleys of the heat dissipation fin (2) are connected with the heating pipe (1) through brazing or gluing.