Preheater with anti-vibration structure

Abstract

The utility model provides a preheater with an anti-vibration structure, which comprises a heater module, and the heater module comprises a shell, an anti-vibration structure, an anti-vibration structure and an anti-vibration structure, the heating belt is located in the cavity of the shell, the heating belt comprises a plurality of fold-back parts and a plurality of main body connecting parts, and the fold-back parts and the main body connecting parts are alternately arranged and sequentially connected to form the wavy heating belt; and the tail end of at least one side edge of the main body connecting part is bent. Compared with the prior art, the vibration resistance of the product is improved, the vibration durability requirement of the large-displacement diesel engine is met, and the problems of low heating durability and reliability and high production cost of a ribbon heater middle screeding scheme are solved.

Description

[Technical Field]

[0001] This utility model relates to the field of engine intake preheating technology, and in particular to a preheater with an anti-vibration structure. [Background Technology]

[0002] Currently, the intelligent preheaters used in China for diesel engines are mainly ceramic gasket type. However, ceramic gasket type has poor vibration resistance and cannot meet the requirements of large displacement engines with drawer-type installation. The existing solution is to design a reinforcing rib structure on the heating tape to increase the strength of the heating tape along its length. However, the reinforcing ribs are formed by stamping, which can cause local thinning and failure after repeated heating. In addition, the manufacturing of the reinforcing ribs requires stamping when the heating tape is unfolded, which requires long molds and results in high costs.

[0003] Therefore, it is necessary to propose a new technical solution to address the above problems. [Utility Model Content]

[0004] One of the objectives of this invention is to provide a preheater with an anti-vibration structure, which not only improves the product's vibration resistance and meets the vibration durability requirements of large-displacement diesel engines, but also avoids the problems of low heating durability and reliability, and high production costs associated with the electric heating tape with intermediate ribs.

[0005] According to one aspect of the present invention, a preheater with a vibration-resistant structure is provided, characterized in that it includes a heater module, the heater module comprising: a shell having a chamber therein; a heating belt located within the chamber of the shell, the heating belt including a plurality of folded-back portions and a plurality of main body connecting portions, the plurality of folded-back portions and the plurality of main body connecting portions being alternately arranged and sequentially connected to form a wavy heating belt; at least one end of the main body connecting portion is bent.

[0006] Furthermore, the bending line on at least one side of the main body connecting portion extends along the length direction of the main body connecting portion.

[0007] Furthermore, the heater module also includes a ceramic pad assembly located within the cavity of the housing and sandwiched between the housing and the heating band.

[0008] Furthermore, the ceramic pad assembly includes a ceramic pad basin, a ceramic pad, and a spring plate. The ceramic pad basin is placed on the inner wall of the outer shell; the spring plate is placed in the ceramic pad basin; the ceramic pad is stacked on the spring plate, and the spring plate supports the ceramic pad; the folded-back portion of the heating belt abuts against the U-groove of the ceramic pad.

[0009] Furthermore, the preheater with the vibration-resistant structure also includes a controller, which is installed on the outside of the housing and electrically connected to the heating element.

[0010] Furthermore, the controller is a high-side controller.

[0011] Compared with the prior art, this utility model not only improves the vibration resistance of the product and meets the vibration durability requirements of large displacement diesel engines, but also avoids the problems of low heating durability reliability and high production cost of the electric heating tape intermediate rib scheme. [Attached Image Description]

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of 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. Among them:

[0013] Figure 1 This is a schematic diagram of the preheater with an anti-vibration structure in one embodiment of the present invention;

[0014] Figure 2 As shown in one embodiment of the present invention Figure 1 The assembly diagram of the heater module shown is shown.

[0015] Figure 3 As shown in one embodiment of the present invention Figure 2 The diagram shows the structure of the heating band 24.

[0016] Figure 4 As shown in one embodiment of the present invention Figure 3 The diagram shows a cross-sectional view of the heating belt along section line AA.

Detailed Implementation Methods

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Unless otherwise specified, the terms coupling, connection, linking, and interconnection used herein to indicate electrical connection mean direct or indirect connection. For example, A being connected to B includes both a direct electrical connection between A and B and a connection between A and B via electrical components or circuits.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "positive", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Please refer to Figure 1 As shown, it is a structural schematic diagram of a preheater with an anti-vibration structure in one embodiment of the present invention. Figure 1 The preheater shown with a vibration-resistant structure includes a controller 10 and a heater module 20.

[0021] Please refer to Figure 2 As shown, this is one embodiment of the present invention. Figure 1 The diagram shows the assembly of the heater module. Figure 2 The heater module shown includes a housing 22, a heating band 24, and a ceramic pad assembly 26.

[0022] The outer shell 22 has a chamber 28 inside; the heating band 24 is located in the chamber 28 of the outer shell 22, and the ceramic pad assembly 26 is also located in the chamber 28, with the ceramic pad assembly 26 sandwiched between the outer shell 22 and the heating band 24.

[0023] Please refer to Figure 3 As shown, this is one embodiment of the present invention. Figure 2 The diagram shown illustrates the structure of the heating element; please refer to it. Figure 4 As shown, this is one embodiment of the present invention. Figure 3 The diagram shows a cross-sectional view of the heating belt along section line AA. Figure 3 and Figure 4 As shown, the heating belt 24 includes multiple fold-back sections 242 and multiple main body connecting sections 244. The fold-back sections 242 and the main body connecting sections 244 are alternately arranged and sequentially connected to form a wavy heating belt. The end 2442 of one side of the main body connecting section 244 is bent. Specifically, the bend line 2444 of one side of the main body connecting section 244 extends along the length direction of the main body connecting section 244. This bending structure designed in the cross-section (or side) of the main body connecting section 244 increases the strength of the heating tape 24 along its length, thereby improving the preheater's vibration resistance and reducing the risk of product failure due to vibration and the inability of the engine to start under cold conditions.

[0024] In another embodiment, the end of the other side of the main body connecting portion 244 can also be bent simultaneously. That is, in this invention, the end of at least one side of the main body connecting portion 244 is bent; the bending line of at least one side of the main body connecting portion 244 extends along the length direction of the main body connecting portion 244.

[0025] exist Figure 2 In the specific embodiment shown, the ceramic pad assembly 26 includes a ceramic pad basin 262, a ceramic pad 264, and a spring sheet 266. The ceramic pad basin 262 is placed on the inner wall of the outer casing 22; the spring sheet 266 is placed in the ceramic pad basin 262; the ceramic pad 264 is stacked on the spring sheet 266, and the spring sheet 266 supports the ceramic pad 264; the folded-back portion 242 of the heating band 24 abuts against the U-groove of the ceramic pad 264, thereby fixing the heating band 24 and the ceramic pad assembly 26 within the outer casing 22.

[0026] Please continue to refer to this. Figure 1 As shown, the controller 10 is mounted on the outside of the housing 22 and is electrically connected to the heating belt 24. The controller 10 mainly functions as a switch and also has engine ECM communication capabilities. Figure 1 In the specific embodiment shown, controller 10 is a high-side controller. Controller 10 is prior art well known to those skilled in the art, and therefore will not be described in detail here.

[0027] In summary, in the preheater with anti-vibration structure provided by this utility model, by designing a bending structure in the cross section (or side) of the main body connection 244, the strength of the heating tape 24 in the length direction can be increased. This not only improves the vibration resistance of the product and meets the vibration durability requirements of large displacement diesel engines, but also avoids the problems of low heating durability reliability and high production cost associated with the intermediate rib design of the heating tape.

[0028] It should be noted that any modifications made by those skilled in the art to the specific embodiments of this utility model do not depart from the scope of the claims of this utility model. Accordingly, the scope of the claims of this utility model is not limited to the foregoing specific embodiments.

Claims

1. A preheater with a vibration-resistant structure, characterized in that, It includes a heater module, the heater module comprising: The outer shell has a cavity inside; A heating band is located within the cavity of the outer casing. The heating band includes multiple folded sections and multiple main body connecting sections, which are arranged alternately and connected in sequence to form a wavy heating band. At least one end of the main body connecting section is bent.

2. The preheater with an anti-vibration structure according to claim 1, characterized in that, The bending line on at least one side of the main body connecting portion extends along the length direction of the main body connecting portion.

3. The preheater with an anti-vibration structure according to claim 1, characterized in that, The heater module also includes a ceramic pad assembly. The ceramic pad assembly is located within the cavity of the housing and is sandwiched between the housing and the heating band.

4. The preheater with an anti-vibration structure according to claim 3, characterized in that, The ceramic pad assembly includes a ceramic basin, a ceramic pad, and a spring plate. The ceramic pad is placed on the inner wall of the outer shell; the spring plate is placed in the ceramic pad; the ceramic pad is stacked on the spring plate, and the spring plate supports the ceramic pad; the folded-back portion of the heating band abuts against the U-groove of the ceramic pad.

5. The preheater with an anti-vibration structure according to any one of claims 1-4, characterized in that, It also includes a controller, The controller is mounted on the outside of the housing and is electrically connected to the heating element.

6. The preheater with an anti-vibration structure according to claim 5, characterized in that, The controller is a high-side controller.

Images