Plug structure, electric heating unit and electric heating system

Abstract

The utility model belongs to the field of electric heating connectors, and particularly relates to a plug structure, an electric heating unit and an electric heating system, and the plug structure comprises a female end connector and a male end connector. An embedding cavity is formed in the female end connector, a limiting piece is arranged on the side wall of the embedding cavity, and a magnetic piece I is arranged at the cavity bottom of the embedding cavity; the male end connector comprises an inserting block, a limiting groove is formed in the side wall of the inserting block, and a magnetic part II is arranged at the front end of the inserting block; an elastic piece I is arranged on the side wall of the embedding cavity, and / or an elastic piece II is arranged on the inserting block. According to the patch plug structure provided by the utility model, the magnetic piece I, the magnetic piece II, the limiting piece, the limiting groove and the elastic piece I and / or the elastic piece II are configured, so that the patch plug structure is convenient and rapid to plug and pull and stable and reliable in connection without shaking. The plug structure can realize physical connection and electric connection of two electric heating units at the same time, and an electric heating system is formed.

Description

Technical Field

[0001] This utility model belongs to the field of electric heating connectors, specifically relating to a connector structure, an electric heating unit, and an electric heating system. Background Technology

[0002] In the field of electric heating systems, modular design has become an important direction for improving flexibility and maintenance efficiency, but existing plug connection technologies still have many limitations. Traditional plug structures mostly use direct contact between metal conductive terminals, which is prone to wear of the conductive groove due to insertion angle deviation or frequent insertion and removal, leading to problems such as poor contact, increased resistance, and tip discharge. In addition, existing plugs mostly rely on crimping or rigid locking structures, which not only have high insertion resistance, but also make the wire crimped joints prone to breakage, making it difficult to meet the long-term stable operation requirements of electric heating systems. In the scenario of modular electric heating unit splicing, existing technologies usually use independent plugs connected to power cords, resulting in complex wiring when the system is expanded, and the failure of a single unit requires the entire system to be powered off for repair, affecting the efficiency of use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a plug structure, electric heating unit and electric heating system that are simple and convenient to plug in and have a stable connection.

[0004] This utility model provides a connector structure, including a female connector and a male connector;

[0005] The female end connector is provided with a fitting cavity, and the side wall of the fitting cavity is provided with a limiting member that can extend and retract toward the fitting cavity. The bottom of the fitting cavity is provided with a magnetic element I.

[0006] The male connector includes a plug block that engages with the fitting cavity. The side wall of the plug block is provided with a limiting groove for engaging with the limiting member in the extended state. The front end of the plug block is provided with a magnetic member II for magnetically engaging with the magnetic member I.

[0007] An elastic element I is provided on the side wall of the fitting cavity between the limiting element and the magnetic element I, and / or, an elastic element II is provided on the insertion block between the limiting groove and the magnetic element II;

[0008] When elastic element I and / or elastic element II are in their initial state, the distance from the limiting element to the bottom of the fitting cavity is greater than or equal to the distance from the limiting groove to the front end of the insertion block.

[0009] Furthermore, an electrical connection structure I is provided inside the fitting cavity, and an electrical connection structure II is provided on the plug-in block for electrical connection with the electrical connection structure I.

[0010] Furthermore, the front end of the plug-in block is provided with an installation cavity;

[0011] The electrical connection structure I is a conductive cannula disposed in the fitting cavity, and the electrical connection structure II is a conductive pin disposed in the mounting cavity.

[0012] Furthermore, the magnetic component I is a plate-shaped magnet disposed at the bottom of the fitting cavity, and the magnetic component II is a ring-shaped magnet disposed at the front end of the insertion block.

[0013] Furthermore, the elastic element I and / or elastic element II are annular rubber pads.

[0014] Furthermore, the sidewall of the fitting cavity is provided with a stepped hole that penetrates the inside and outside of the fitting cavity, and the side of the stepped hole closer to the inside of the fitting cavity is a large hole;

[0015] The limiting component includes a limiting rod and a return spring. The limiting rod is slidably disposed in the stepped hole. A limiting block is also provided in the large hole where the limiting rod is located. The return spring is sleeved on the limiting rod, with one end abutting against the bottom of the large hole and the other end abutting against the limiting block.

[0016] One end of the limiting member can extend out of the large hole and move into the fitting cavity, while the other end is always located outside the side wall of the fitting cavity.

[0017] Furthermore, the limiting groove is a conical hole structure, and the limiting rod extending to one end of the fitting cavity is a conical rod structure.

[0018] This utility model also provides an electric heating unit, including an electric heating body and the aforementioned connector structure disposed on the electric heating body, wherein both the electrical connection structure I and the electrical connection structure II are electrically connected to the heating structure of the electric heating body.

[0019] The electric heater body is rectangular or a regular polygon.

[0020] This utility model also provides an electric heating system, including the above-mentioned electric heating unit, wherein several electric heating units are spliced ​​together, and adjacent electric heating units are physically and electrically connected through a set of female and male connectors.

[0021] The beneficial effects of this utility model are that the connector structure provided by this utility model, through the configuration of magnetic component I and magnetic component II, limiting component and limiting groove, and elastic component I and / or elastic component II, achieves convenient and quick insertion and removal, as well as stable and reliable connection without shaking. This connector structure can simultaneously realize the physical and electrical connection of two electric heating units, forming an electric heating system. Attached Figure Description

[0022] Appendix Figure 1 A schematic diagram of the structure of the female plug of this utility model when elastic element I is provided;

[0023] Appendix Figure 2 This is a schematic diagram of the male plug of this utility model without the elastic element II.

[0024] Appendix Figure 3 A schematic diagram showing the fit of the female plug in this utility model having elastic element I and the male plug not having elastic element II.

[0025] Appendix Figure 4 This is a schematic diagram showing the fit of the female plug without elastic element I and the male plug with elastic element II in this utility model.

[0026] Appendix Figure 5 A schematic diagram showing the fit of the female plug with elastic element I and the male plug with elastic element II in this utility model.

[0027] Appendix Figure 6 This is a schematic diagram showing the engagement of the limiting rod and the limiting groove in this utility model;

[0028] Appendix Figure 7 This is a schematic diagram showing the separation of the limiting rod and the limiting groove in this utility model;

[0029] Appendix Figure 8 This is a schematic diagram showing the engagement of the limiting rod and the limiting groove in this utility model when they are conical structures;

[0030] Appendix Figure 9 This is a schematic diagram showing the separation of the limiting rod and the limiting groove in this utility model when they are conical structures;

[0031] Appendix Figure 10 This is a front view of the electric heating unit in this utility model when the electric heating body is rectangular;

[0032] Appendix Figure 11 This is a front view of the electric heating unit in this utility model when the electric heating body is a regular hexagon;

[0033] Appendix Figure 12 This is a top view of the electric heating unit in this utility model when the electric heating body is a regular hexagon;

[0034] Appendix Figure 13 This is a front view of the electric heating system when the electric heating body is a regular hexagon.

[0035] In the diagram, 1-Female connector; 11-Matching cavity; 12-Limiting component; 121-Limiting rod; 122-Reset spring; 123-Limiting block; 13-Magnetic component I; 14-Stepped hole; 15-Elastic component I; 16-Electrical connection structure I; 2-Male connector; 21-Plug-in block; 22-Limiting groove; 23-Magnetic component II; 24-Mounting cavity; 25-Elastic component II; 26-Electrical connection structure II; 3-Electric heating body. Detailed Implementation

[0036] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] As attached Figure 1 -Appendix Figure 13 As shown, this utility model provides a connector structure for physically connecting two objects, such as the physical connection between two electric heating units, including a female connector 1 and a male connector 2.

[0042] The female connector 1 is provided with a fitting cavity 11, and a limiting member 12 that can extend and retract toward the fitting cavity 11 is provided on the side wall of the fitting cavity 11. A magnetic member I 13 is provided on the bottom of the fitting cavity 11.

[0043] The male connector 2 includes a plug block 21 that engages with the fitting cavity 11, meaning the plug block 21 can be inserted into the fitting cavity 11. The side wall of the plug block 21 is provided with a limiting groove 22 for engaging with the extending limiting member 12. When the limiting member 12 engages with the limiting groove 22, it prevents the plug block 21 from disengaging from the fitting cavity 11, thereby locking the plug block 21 and the fitting cavity 11. When the limiting member 12 retracts away from the fitting cavity 11, the limiting member 12 separates from the limiting groove 22, releasing the restriction between the plug block 21 and the fitting cavity 11, thus unlocking the plug block 21 and the fitting cavity 11. The front end of the plug-in block 21 is provided with a magnetic component II 23 for magnetically engaging with the magnetic component I 13. That is, when the plug-in block 21 is inserted into the fitting cavity 11, the magnetic component I 13 and the magnetic component II 23 magnetically attract each other, which can ensure that the plug-in block 21 and the fitting cavity 11 are quickly engaged and can provide a certain attraction force after engagement, preventing them from being too easily separated. At the same time, it is convenient for the user to operate the engagement and disengagement of the limiting component 12 and the limiting groove 22.

[0044] An elastic element I15 is provided on the side wall of the fitting cavity 11 between the limiting element 12 and the magnetic element I13, and / or, an elastic element II25 is provided on the insertion block 21 between the limiting groove 22 and the magnetic element II23; i.e., refer to the attached drawing. Figure 3 Elastic element I15 can be provided only on the side wall of the fitting cavity 11, see attached figure. Figure 4 Alternatively, elastic element II 25 can be provided only on the plug-in block 21, see attached figure. Figure 5 Furthermore, elastic element I15 and elastic element II25 can be installed simultaneously.

[0045] When elastic element I 15 and / or elastic element II 25 are in their initial state, the distance from the limiting element 12 to the bottom of the fitting cavity 11 is greater than or equal to the distance from the limiting groove 22 to the front end of the insertion block 21. When the distance from the limiting element 12 to the bottom of the fitting cavity 11 is greater than the distance from the limiting groove 22 to the front end of the insertion block 21, after the magnetic element I 13 and magnetic element II 23 are magnetically attracted together, it is necessary to compress elastic element I 15 and / or elastic element II 25 in order for the limiting element 12 to engage with the limiting groove 22. At this time, when the limiting member 12 engages with the limiting groove 22, and the magnetic members I 13 and II 23 magnetically attract each other, the magnetic members I 13 and II 23 will drive the front end of the plug block 21 and the fitting cavity 11 to move closer and attract each other. Meanwhile, the elastic members I 15 and / or II 25 will have a restoring force to drive the engaged limiting member 12 and the limiting groove 22 to move away from each other, thereby achieving a tight engagement between the limiting member 12 and the limiting groove 22, reducing the possibility of loosening and shaking of the female connector 1 and the male connector 2, and achieving a stable and tight engagement between the female connector 1 and the male connector 2.

[0046] The connector structure provided by this utility model, through the configuration of magnetic components I13 and II23, limiting component 12 and limiting groove 22, and elastic component I15 and / or elastic component II25, achieves convenient and quick insertion and removal, as well as stable and reliable connection without shaking. This connector structure can simultaneously realize the physical and electrical connection of two electric heating units, forming an electric heating system.

[0047] In one embodiment, reference is made to the appendix. Figure 1 The fitting cavity 11 is provided with an electrical connection structure I 16, and the plug block 21 is provided with an electrical connection structure II 26 for electrical connection with the electrical connection structure I 16. After the female connector 1 and the male connector 2 are mated, the electrical connection between the two objects, such as the electrical connection between two electric heating units, can be achieved through the electrical connection structure I 16 and the electrical connection structure II 26. At this time, this connector structure can achieve both physical and mechanical connection and electrical connection between the two objects, thereby improving practicality.

[0048] In one embodiment, reference is made to the appendix. Figure 2 The front end of the plug-in block 21 is provided with a mounting cavity 24. The mounting cavity 24 serves two purposes: firstly, it provides an installation cavity for the electrical connection structure II 26. When the electrical connection structure II 26 is positioned within the mounting cavity 24, and the male connector 2 is not mated with the female connector 1, the mounting cavity 24 provides physical protection for the electrical connection structure II 26. Secondly, the mounting cavity 24 also reduces the material and weight of the male connector 2, saving material costs.

[0049] The electrical connection structure I 16 is a conductive tube disposed within the fitting cavity 11. In this case, the fitting cavity 11 serves both to facilitate insertion with the plug block 21 and to provide physical protection for the conductive tube when the male connector 2 is not mated with the female connector 1. The electrical connection structure II 26 is a conductive pin disposed within the mounting cavity 24. The cooperation between the conductive tube and the conductive pin ensures a stable connection, a large contact area, and thus provides high current transmission.

[0050] In one embodiment, the magnetic component I 13 is a plate magnet disposed at the bottom of the fitting cavity 11, and the magnetic component II 23 is a ring magnet disposed at the front end of the insertion block 21. The use of a ring magnet allows the conductive tube to be inserted into the mounting cavity 24, and the plate magnet and the ring magnet can have strong attraction forces, thereby improving the stability of the fit.

[0051] In one embodiment, the elastic element I 15 and / or elastic element II 25 are annular rubber pads. This allows for the movement of the limiting rod 121 and the limiting groove 22.

[0052] In one embodiment, reference is made to the appendix. Figure 6 -Appendix Figure 9 The side wall of the fitting cavity 11 is provided with a stepped hole 14 that penetrates the inside and outside of the fitting cavity 11. The side of the stepped hole 14 closer to the inside of the fitting cavity 11 is a large hole, and the side closer to the outside of the side wall is a small hole.

[0053] The limiting member 12 includes a limiting rod 121 and a return spring 122. The limiting rod 121 is slidably disposed in the stepped hole 14. The limiting rod 121 is also provided with a limiting block 123 in the large hole. The return spring 122 is sleeved on the limiting rod 121, with one end abutting against the bottom of the large hole and the other end abutting against the limiting block 123.

[0054] One end of the limiting member 12 can extend from the large hole and move into the fitting cavity 11, while the other end is always located outside the side wall of the fitting cavity 11. By pulling the limiting member 12 to the side outside the side wall of the fitting cavity 11, the other end of the limiting rod 121 can be moved away from the fitting cavity 11, thereby unlocking the limiting rod 121 and the limiting groove 22. When no external force is applied to the limiting rod 121, the limiting rod 121 receives the push force of the return spring 122 and can always extend towards the fitting cavity 11. Thus, during the insertion of the male connector 2 into the female connector 1 and after locking, no manual operation of the limiting rod 121 is required. The limiting rod 121 only needs to be manually pulled when it is necessary to unlock the male connector 2 and the female connector 1, which greatly simplifies the use and improves the insertion and removal efficiency.

[0055] In one embodiment, reference is made to the appendix. Figure 8 -Appendix Figure 9 The limiting groove 22 has a tapered hole structure, and the limiting rod 121 extends to one end of the fitting cavity 11 and has a tapered rod structure. By using tapered hole and tapered rod structures, the limiting rod 121 can be slid into the limiting groove 22, which further improves the installation convenience of both.

[0056] Reference Appendix Figure 10 and attached Figure 11 This utility model also provides an electric heating unit, including an electric heating body 3 and the aforementioned connector structure disposed on the electric heating body 3. The female connector 1 and male connector 2 of the connector structure are arranged opposite to each other. The electrical connection structure I 16 and electrical connection structure II 26 are both electrically connected to the heating structure of the electric heating body 3. The female connector 1 of this electric heating unit is used to connect with the male connector 2 of another electric heating unit, while the male connector 2 is used to connect with the female connector 1 of another electric heating unit. At this time, the connector structure can simultaneously realize the physical connection and electrical connection of two electric heating units. Of course, refer to the appendix. Figure 13 The female connector 1 or male connector 2 at the lower end can also be used to connect other electrical equipment, such as power supplies or controllers.

[0057] In one preferred embodiment, refer to the appendix Figure 10 The electric heating body 3 is rectangular, as shown in the attached diagram. Figure 11 The electric heating body 3 is a regular polygon, preferably a square or a regular hexagon. This facilitates the seamless splicing of multiple electric heating bodies 3 to form a large-scale electric heating system, allowing for flexible layout adjustments based on the size and shape of the space, suitable for various irregular spaces. In other embodiments, the electric heating body 3 can also be other interlocking structures, selected according to specific needs.

[0058] Reference Appendix Figure 13 This utility model also provides an electric heating system, comprising several of the aforementioned electric heating units. These units are interconnected, and adjacent units are physically and electrically connected via a set of female connectors 1 and male connectors 2. This electric heating system, after multiple heating units are interconnected, ensures that all heating bodies 3 are powered and their relative positions are fixed. Furthermore, if one or more heating bodies 3 are damaged, only the damaged heating body 3 needs to be replaced, significantly reducing maintenance costs.

[0059] The above description is merely an embodiment and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations, modifications, or alterations to the technical solution of this utility model without departing from its scope. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from its scope, should fall within the protection scope of this utility model.

Claims

1. A connector structure, characterized in that, The female end connector (1) and the male end connector (2) are provided; The female end connector (1) is provided with a fitting cavity (11), and a limiting piece (12) capable of extending and retracting towards the fitting cavity (11) is arranged on the side wall of the fitting cavity (11); and a magnetic piece I (13) is arranged on the bottom of the fitting cavity (11); The male end connector (2) comprises a plug-in block (21) fitted with the fitting cavity (11), the side wall of the plug-in block (21) is provided with a limiting groove (22) for clamping the limiting piece (12) in the extended state, and the front end of the plug-in block (21) is provided with a magnetic piece II (23) for magnetic attraction with the magnetic piece I (13); The elastic piece I (15) is arranged between the limiting piece (12) and the magnetic piece I (13) on the side wall of the fitting cavity (11), and / or the elastic piece II (25) is arranged between the limiting groove (22) and the magnetic piece II (23) of the plug-in block (21); When the elastic piece I (15) and / or the elastic piece II (25) are in the initial state, the distance from the limiting piece (12) to the bottom of the fitting cavity (11) is greater than or equal to the distance from the limiting groove (22) to the front end of the plug-in block (21).

2. The connector structure of claim 1 wherein, The fitting cavity (11) is provided with an electric connection structure I (16), and the plug-in block (21) is provided with an electric connection structure II (26) for electrically connecting with the electric connection structure I (16).

3. The connector structure of claim 2 wherein, The front end of the plug-in block (21) is provided with a mounting cavity (24); The electric connection structure I (16) is a conductive insertion tube arranged in the fitting cavity (11), and the electric connection structure II (26) is a conductive insertion needle arranged in the mounting cavity (24).

4. The connector structure of claim 3 wherein, The magnetic piece I (13) is a plate-shaped magnet arranged at the bottom of the fitting cavity (11), and the magnetic piece II (23) is a ring-shaped magnet arranged at the front end of the plug-in block (21).

5. The connector structure of claim 4 wherein, The elastic piece I (15) and / or the elastic piece II (25) are rubber pads with a ring structure.

6. The connector structure according to any one of claims 1 to 5, wherein The side wall of the fitting cavity (11) is provided with a stepped hole (14) penetrating the fitting cavity (11) inside and outside, and the side close to the fitting cavity (11) is a large hole; The limiting piece (12) comprises a limiting rod (121) and a return spring (122), the limiting rod (121) is slidingly arranged in the stepped hole (14), and a limiting block (123) is further arranged in the large hole; the return spring (122) is sleeved on the limiting rod (121), and one end abuts against the bottom of the large hole, and the other end abuts against the limiting block (123); One end of the limiting piece (12) can extend from the large hole to move into the fitting cavity (11), and the other end is always located outside the side wall of the fitting cavity (11).

7. The connector structure of claim 6 wherein, The limiting groove (22) is a tapered hole structure, and the limiting rod (121) is a tapered rod structure when it extends and moves into the fitting cavity (11).

8. An electric heating unit, characterized in that The electric heating body (3) is rectangular or a regular polygon.

9. The electric heating unit according to claim 8, characterized in that The electric heating body (3) is rectangular or a regular polygon.

10. An electric heating system, characterized in that The electric heating body (3) is rectangular or a regular polygon.

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