Connection structure of PTC electric heater

Abstract

The utility model is suitable for the technical field of PTC (Positive Temperature Coefficient) electric heaters, and provides a PTC electric heater connecting structure, which comprises a group of mounting bases, a group of mounting joints are arranged on each of the two mounting bases; connecting assemblies are arranged on the opposite sides of the two mounting joints; the connecting assembly comprises fixing blocks, and assembling grooves are formed in the outer surfaces of the two fixing blocks; the reset spring and the insertion tongue are arranged in the two assembly grooves; due to the application of the light plastic material, the weight of the mounting bracket base and the mounting joint is greatly reduced, so that the whole equipment is lighter and more flexible, the portability is improved, and the mounting and maintenance processes are simplified; in addition, the mounting connectors are designed to be easy to quickly mount and dismount, the number of the mounting connectors can be flexibly adjusted according to actual use requirements, and due to the design, the connecting stability is enhanced, and the situation that the connecting structure accidentally falls off under the action of external force is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to PTC electric heater technical field especially relates to a PTC electric heater connecting structure. BACKGROUND

[0002] In the traditional PTC electric heater market, many products generally use sheet metal parts and base types as the core components of their connecting structures. Although these structures can meet the basic heating function requirements to some extent, they gradually expose a series of significant defects in actual application.

[0003] Firstly, the connecting structure of sheet metal parts and base type usually has a large weight, which not only significantly increases the overall weight of the equipment, but also greatly limits the portability and flexibility of the equipment. For those application scenarios that need to be moved frequently or installed at different locations, this weight and lack of flexibility problem is particularly prominent, causing many inconveniences to the users.

[0004] Secondly, these traditional connecting structures often adopt a fixed design, which cannot flexibly adjust the number of heating bodies according to actual needs. This fixedness not only limits the scalability and adaptability of the equipment, but also may lead to waste of resources and increase of cost. In the changing application environment, such design lacking flexibility obviously cannot meet the user's demand for efficient and flexible heating solutions. SUMMARY

[0005] The utility model provides a PTC electric heater connecting structure, aims at solving two significant shortcomings of sheet metal parts and base type connecting structure in the traditional PTC electric heater market: one is heavy, which seriously affects the portability and flexibility of the equipment; the other is fixed design, which cannot flexibly adjust the number of heating bodies, limiting the scalability and adaptability of the equipment, and being difficult to meet the efficient and flexible heating demand in the changing application environment.

[0006] The utility model is realized in this way, a PTC electric heater connecting structure, including a group of installation base, two installation base all set up a group of installation joint, two installation joint opposite one side position all are provided with connecting assembly, connecting assembly includes: fixed block, fixed block sets up in the bottom of upper end installation joint one side position, two fixed block's outer surface all are seted up with assembly recess, reset spring that sets up in two assembly recess, reset spring is provided with damper in, two reset spring far away from corresponding assembly recess one end respectively is provided with one plug, is located in lower end installation joint and plug opposite one side set up with the plug-in slot, this installation joint is adjacent to the plug-in slot and set up with the pressing groove in the outer side wall, pressing groove and plug-in slot are communicated.

[0007] Preferably, the connecting assembly further comprises: a first limiting strip, which is arranged at the other side of the upper end mounting joint away from the fixed block, and has a convex shape; and a second limiting strip, which is arranged at the side opposite to the first limiting strip of the lower end mounting joint, and has a concave shape.

[0008] Preferably, the end of the first limiting strip is provided with a locking protrusion, and the second limiting strip is provided with a locking groove matched with the locking protrusion.

[0009] Preferably, the outer surface of one side of each of the mounting joints is provided with a mounting groove, and each two opposite mounting grooves are provided with a same heating main body.

[0010] Preferably, the upper and lower sides of the mounting groove are both provided with abutting protrusions.

[0011] Preferably, the left and right sides of the mounting groove are both provided with inner concave surfaces, which form a guide cavity in cooperation with the abutting protrusions.

[0012] Preferably, the mounting support base and the mounting joint are made of lightweight plastic material.

[0013] Preferably, the end of the fixed block is provided with an inclined surface with an inclination.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] Firstly, the device is made of lightweight plastic material, which greatly reduces the weight of the mounting support base and the mounting joint, so that the whole equipment is more portable, thereby improving the portability and flexibility and simplifying the installation and maintenance process. Secondly, compared with traditional materials such as metal, the lightweight plastic material is more economical in cost, which helps to reduce production costs, so that the PTC electric heater can face the market at a more competitive price while maintaining excellent performance. The application of this material not only optimizes the overall performance of the equipment, but also significantly enhances its market competitiveness, ultimately providing users with a high-quality product selection with excellent performance and reasonable price.

[0016] Secondly, the mounting joint of the device is designed to be easily and quickly installed and disassembled, and the number of mounting joints can be flexibly adjusted according to actual use requirements. This design not only greatly enhances the stability of the connection, but also effectively avoids the accidental falling of the connection structure under external force. In addition, the upper and lower sides of the mounting groove are ingeniously provided with abutting protrusions, and the left and right sides are matched with the abutting protrusions through the inner concave surfaces, forming a precise guide cavity. The stability of the heating main body during installation is improved, and the phenomenon of shaking or falling is effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of a three-dimensional structure of the utility model;

[0018] Figure 2 is a schematic diagram of a three-dimensional structure of the utility model;

[0019] Figure 3 is a front view of the utility model;

[0020] Figure 4 is a top view of the utility model;

[0021] Figure 5 is a schematic diagram of a connecting assembly structure of the utility model;

[0022] In the figure: 1, mounting base;2, mounting joint;3, fixed block;4, assembly recess;5, reset spring;6, plug tongue;7, plug slot;8, press slot;9, first limit bar;10, second limit bar;11, locking lug;12, locking recess;13, mounting slot;14, heating main body;15, abutting protrusion;16, inner concave surface. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description and the drawings are to be regarded as illustrative in nature and are not intended to limit the application; the terminology used in the description and the claims of the present application and the above description of the drawings includes the terms specifically noted above, along with their derivatives, and / or its usage of the terms "include", "have" and the like are intended to be inclusive in a manner similar to the term "comprising" as that term is interpreted in the art to which this application pertains; the terms "first", "second", and the like, as used herein do not have any specific meaning, but are used only to distinguish one element from another.

[0024] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art upon reading this description, the embodiments described herein are merely examples of implementations and are not intended to limit the scope of the application in any way.

[0025] The utility model embodiment provides a kind of PTC electric heater connecting structure, such as Figures 1-5As shown, including a set of mounting base 1; two said mounting base 1 is provided with a set of mounting joint 2; two said mounting joint 2 opposite side position are provided with connecting assembly; the connecting assembly includes: fixed block 3, the fixed block 3 is arranged in the bottom of the upper end mounting joint 2 one side position; two said fixed block 3 the outer surface is provided with assembly recess 4; reset spring 5 is arranged in two said assembly recess 4, the reset spring 5 is provided with damper; two said reset spring 5 away from the end of corresponding assembly recess 4 is provided with one plug tongue 6; located in the lower end of the mounting joint 2 and plug tongue 6 opposite side opening has inserted slot 7, this mounting joint 2 adjacent inserted slot 7 outside wall opening has pressing slot 8, the pressing slot 8 and inserted slot 7 are communicated.

[0026] It should be noted that, in the traditional PTC electric heater market, sheet metal and base type connection structure has two significant shortcomings: one is heavy, seriously affect the portability and flexibility of the device; two is fixed design, can't adjust the number of heating main body 14, limits the scalability and adaptability of the device, difficult to meet the efficient flexible heating demand in the changing application environment, the scheme adopts lightweight plastic material and innovative mounting joint 2 design, greatly improves the overall performance of the device and market competitiveness; the application of lightweight plastic material significantly reduces the weight of the device, enhances the portability and flexibility, simplifies the installation and maintenance process, and reduces the production cost, at the same time, the mounting joint 2 is easy to quickly install and disassemble, and the number can be flexibly adjusted according to the actual demand, greatly enhances the stability of the connection, avoids accidental falling under the action of external force, and the clever design of the mounting groove 13 further improves the stability of the heating main body 14 in the installation process, effectively prevents the shaking or falling phenomenon, so as to fully ensure the reliability and durability of the device.

[0027] Specifically, in the embodiment, the scheme mainly includes a set of mounting base 1, the plug tongue 6 is pressed to temporarily retract into the assembly recess 4 under the action of the reset spring 5; then, the fixed block 3 of the upper end mounting joint 2 is aligned with the inserted slot 7 of the lower end mounting joint 2; once the alignment is completed, the plug tongue 6 is released, and the plug tongue 6 is automatically inserted into the inserted slot 7 under the elastic force of the reset spring 5; when the plug tongue 6 is completely inserted into the inserted slot 7, the connection structure is firmly fixed together; at this time, the reset spring 5 and the built-in damper work together to provide the necessary elasticity and damping effect for the connection, so as to ensure the stability and durability of the connection;

[0028] Such assembly process is simple and efficient, and the reset spring 5 and the damper are used, so that the connection structure can still maintain excellent connection performance and reliability while being lightweight.

[0029] In the further preferred embodiment of the utility model,Figure 5 As shown in the figure, the connecting assembly further comprises: a first limiting strip 9, which is arranged at the other side of the upper end mounting joint 2 away from the fixed block 3, and the first limiting strip 9 is in a convex shape; a second limiting strip 10 is arranged at the side opposite to the first limiting strip 9 of the lower end mounting joint 2, and the second limiting strip 10 is in a concave shape.

[0030] In this embodiment, as the assembly proceeds, the tongue 6 is popped into the insertion slot 7 under the action of the reset spring 5, and the preliminary connection is realized; at this time, the first limiting strip 9 also begins to gradually slide into the concave space of the second limiting strip 10; once the tongue 6 is completely inserted into the insertion slot 7, and the first limiting strip 9 is completely slid into the concave space of the second limiting strip 10, the connecting structure is firmly locked together, and this locking mechanism not only enhances the stability of the connection, but also prevents the connecting structure from accidentally falling off when subjected to external force.

[0031] In further preferred embodiments of the utility model, as shown in the figure, Figure 5 The end of the first limiting strip 9 is provided with a locking protrusion 11, and the second limiting strip 10 is provided with a locking groove 12 matched with the locking protrusion 11.

[0032] In this embodiment, as the assembly proceeds, the locking protrusion 11 is completely slid into the locking groove 12, forming a tight locking mechanism, which not only greatly enhances the stability of the connection, but also effectively prevents the risk of accidental falling of the connecting structure when subjected to external force.

[0033] In further preferred embodiments of the utility model, as shown in the figure, Figures 1-2 The outer surface of each of the mounting joints 2 is provided with a mounting groove 13, and each two opposite mounting grooves 13 are provided with a same heating main body 14.

[0034] In this embodiment, the two mounting grooves 13 are used to jointly support and fix the heating main body 14, which not only realizes efficient heat transfer and stable connection performance, but also improves the compactness and reliability of the whole structure.

[0035] In further preferred embodiments of the utility model, as shown in the figure, Figures 1-5 The upper and lower sides of the mounting groove 13 are provided with abutting protrusions 15.

[0036] In this embodiment, the abutting protrusions 15 can increase the contact area between the heating main body 14 and the mounting groove 13, thereby improving the stability of the heating main body 14 during the mounting process; when the heating main body 14 is placed in the mounting groove 13, the abutting protrusions 15 can tightly fit on the upper and lower sides of the heating main body 14, preventing it from shaking or falling off.

[0037] The utility model discloses further preferable embodiment, like Figure 5 As shown in the figure, the left and right sides of the installation groove 13 are provided with inner concave surfaces 16, and the inner concave surfaces 16 cooperate with the abutting protrusions 15 to form a guide cavity.

[0038] In this embodiment, the design of the guide cavity not only makes the heating body 14 more stable during installation, but also prevents it from shaking or falling off to a certain extent. When the heating body 14 is completely placed in the installation groove 13, the guide cavity can tightly fit on the left and right sides of the heating body 14, providing additional support and fixing effect.

[0039] The utility model discloses further preferable embodiment, like Figures 1-5 As shown in the figure, the installation support base and the installation joint 2 are made of lightweight plastic material.

[0040] In this embodiment, the lightweight plastic material significantly reduces the weight of the installation support base and the installation joint 2, and the lightweight design helps to improve the portability and flexibility of the equipment, facilitating installation and maintenance. Compared with traditional materials such as metal, lightweight plastic material usually has lower cost, which makes the PTC electric heater more competitive in pricing while maintaining high performance.

[0041] The utility model discloses further preferable embodiment, like Figure 5 As shown in the figure, the end of the fixed block 3 is provided with an inclined surface with inclination.

[0042] In this embodiment, the guide effect of the inclined surface design can more easily achieve accurate installation between the two installation joints 2.

[0043] Working principle: during the assembly process of the connection structure of the PTC electric heater, first, press the plug tongue 6, so that it temporarily retracts into the assembly groove 4 under the action of the reset spring 5; this step provides convenience for the subsequent installation, ensuring that the plug tongue 6 does not interfere with the alignment process of the upper end installation joint 2 and the lower end installation joint 2; then, the fixed block 3 of the upper end installation joint 2 and the plug-in slot 7 of the lower end installation joint 2 are accurately aligned; this alignment process is crucial, as it determines the stability and reliability of the connection structure;

[0044] Once the alignment is completed, release the press on the plug tongue 6; at this time, the plug tongue 6 automatically pops into the plug-in slot 7 under the elastic force of the reset spring 5, achieving preliminary connection; with the complete insertion of the plug tongue 6, the first limiting strip 9 also begins to gradually slide into the concave space of the second limiting strip 10; this design not only enhances the stability of the connection, but also prevents accidental falling off of the connection structure when subjected to external force;

[0045] Then, the locking protrusion 11 is completely slid into the locking groove 12, forming a tight locking mechanism; this step further consolidates the stability of the connection structure and effectively reduces the risk of the connection structure falling off when subjected to external force;

[0046] The number of connections requiring the installation of the joint 2 is determined as needed, and then the heating body 14 is supported and fixed together through the installation slot 13, which not only realizes efficient heat transfer and stable connection performance, but also improves the compactness and reliability of the entire structure; this design makes the PTC electric heater perform well in various application scenarios;

[0047] In addition, the upper and lower sides of the installation slot 13 are provided with abutting protrusions 15, which can increase the contact area between the heating body 14 and the installation slot 13, thereby improving the stability of the heating body 14 during installation; when the heating body 14 is placed in the installation slot 13, the abutting protrusions 15 can tightly fit on the upper and lower sides of the heating body 14, preventing it from shaking or falling off;

[0048] At the same time, the left and right sides of the installation slot 13 are also provided with inner recesses 16, which form a guide cavity in cooperation with the abutting protrusions 15; the design of the guide cavity not only makes the heating body 14 more stable during installation, but also can prevent it from shaking or falling off to some extent after installation; when the heating body 14 is completely placed in the installation slot 13, the guide cavity can tightly fit on the left and right sides of the heating body 14, providing additional support and fixing effect;

[0049] Finally, it is worth mentioning that the installation bracket base and the installation joint 2 are made of lightweight plastic material; this material selection not only significantly reduces the weight of the installation bracket base and the installation joint 2, improves the portability and flexibility of the equipment, but also reduces the production cost, so that the PTC electric heater can be priced more competitively while maintaining high performance.

[0050] It should be noted that for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0051] In several embodiments provided by the present application, it should be understood that the disclosed apparatus can be implemented by other manners. For example, the apparatus embodiments described above are merely illustrative, for example, the division of the above units can have another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection between the units or components through some interfaces, and can be electrical or other forms.

[0052] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0053] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete or make other adjustments to the features in each embodiment of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also belong to the scope of protection of the present application.

Claims

1. A PTC electric heater connection structure, characterized by comprising: The utility model relates to a kind of installation base (1) and installation joint (2) and connecting assembly. Two installation joints (2) are provided with a set of installation joints (2) on the two installation bases (1). Two opposite sides of the installation joint (2) are provided with a connecting assembly. The connecting assembly comprises: A fixed block (3) is provided on one side of the bottom of the upper end installation joint (2). Two outer surfaces of the fixed block (3) are provided with an assembly groove (4). A reset spring (5) is provided in the assembly groove (4), and a damper is provided in the reset spring (5). Two ends of the reset spring (5) away from the corresponding assembly groove (4) are respectively provided with a plug (6). An insertion slot (7) is provided on the side opposite to the plug (6) of the lower end installation joint (2), and a pressing groove (8) is provided on the outer wall adjacent to the insertion slot (7) of the installation joint (2), and the pressing groove (8) is in communication with the insertion slot (7). The connecting assembly further comprises:

2. A PTC electric heater connection structure according to claim 1, wherein A first limiting strip (9) is provided on the other side of the upper end installation joint (2) away from the fixed block (3), and the first limiting strip (9) is in a convex shape. A second limiting strip (10) is provided on the side opposite to the first limiting strip (9) of the lower end installation joint (2), and the second limiting strip (10) is in a concave shape. The end of the first limiting strip (9) is provided with a locking lug (11), and the second limiting strip (10) is provided with a locking groove (12) matching the locking lug (11).

3. A PTC electric heater connection structure according to claim 2, wherein The outer surface of the installation joint (2) is provided with a mounting groove (13) on one side, and the same heating body (14) is provided in every two opposite mounting grooves (13).

4. A PTC electric heater connection structure according to claim 2, wherein The upper and lower sides of the mounting groove (13) are provided with abutting protrusions (15).

5. A PTC electric heater connection structure according to claim 4, wherein The left and right sides of the mounting groove (13) are provided with inner recesses (16), and the inner recesses (16) and the abutting protrusions (15) form a guide cavity.

6. A PTC electric heater connection structure according to claim 5, wherein The installation support base and the installation joint (2) are made of lightweight plastic material.

7. A PTC electric heater connection structure according to claim 4, wherein The end of the fixed block (3) is provided with an inclined surface with inclination.

8. The PTC electric heater connection structure according to claim 2, wherein ​

Images