Internal combustion engine waste heat recovery efficient thermoelectric conversion device

By designing heat dissipation and installation devices, the problem of reduced conversion efficiency caused by the cold end temperature of the thermoelectric converter being close to the hot end temperature was solved, achieving efficient heat dissipation and simplified installation, thereby improving both conversion and installation efficiency.

CN223854337UActive Publication Date: 2026-01-30刘北华
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Patent Information

Application Number
CN202520789697.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-01-30
Estimated Expiration
2035-04-24

AI Technical Summary

Technical Problem

In existing thermoelectric conversion devices, the temperature at the hot end is transferred to the cold end during use, causing the temperature at the cold end to approach that at the hot end, resulting in a decrease in conversion efficiency.

Method used

A high-efficiency thermoelectric conversion device for waste heat recovery from an internal combustion engine, including a heat dissipation device and an installation device, is designed. Cold end heat dissipation is achieved through the cooperation of a collar and a positioning rod, cold end heat dissipation efficiency is improved by using heat dissipation fins and a stabilizing rod, and the installation process is simplified by the cooperation of the stabilizing rod and the limiting block.

Benefits of technology

It effectively improves the conversion efficiency of thermoelectric conversion devices, avoids the problem of cold end temperature being close to hot end temperature, simplifies the installation process, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of internal combustion engine waste heat recovery, in particular to an internal combustion engine waste heat recovery efficient thermoelectric conversion device which comprises a first converter, a second converter arranged on the lower surface of the first converter, an exhaust pipe installed between the first converter and the second converter, and a heat dissipation device arranged at one end of the second converter. The heat dissipation device comprises a lantern ring, the lantern ring is arranged on the lower surface of the second converter in a sleeving mode, cooling fins are fixedly connected to the outer surface of the lantern ring, sliding sleeves are fixedly connected to the two sides of the lantern ring, sleeve grooves are formed in the inner sides of the sliding sleeves, the surfaces of the first converter and the second converter are sleeved with the sleeve grooves, and inserting holes are formed in the two sides of the first converter. According to the thermoelectric conversion device, by arranging the heat dissipation device, a worker can effectively and conveniently dissipate heat of the cold end of the thermoelectric conversion device, the temperature of the cold end of the thermoelectric conversion device is prevented from being close to the temperature of the hot end of the thermoelectric conversion device, and the conversion efficiency of the thermoelectric conversion device is further improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to internal combustion engine waste heat recovery technology field especially relates to a kind of internal combustion engine waste heat recovery high-efficiency thermoelectric conversion device. BACKGROUND

[0002] Internal combustion engine waste heat recovery thermoelectric conversion device is a kind of equipment using the waste heat generated in the operation process of internal combustion engine to generate electricity, and its working principle is based on the heat generated by internal combustion engine combustion, and these heat is converted into electric energy by specific waste heat recovery system, and internal combustion engine waste heat recovery thermoelectric conversion device is widely used in various energy-efficient utilization scenarios, especially in industrial, agricultural and commercial fields, industrial field, such as steel, chemical, textile and other industries, a large amount of waste heat will be generated in the production process, which can be converted into electric energy or other forms of energy by internal combustion engine waste heat recovery device for production or life, agricultural field, such as breeding farm, farm and other places, a large amount of biomass waste and biogas will be generated, which can be converted into electric energy and heat energy by internal combustion engine waste heat recovery device for power supply and heating, commercial field, such as hotel, hospital, shopping mall and other places, which usually need a large amount of electric energy and heat energy, which can meet the energy demand of internal combustion engine waste heat recovery device and reduce energy consumption and operating cost, with the continuous progress of energy technology and the enhancement of environmental protection consciousness, the application prospect of internal combustion engine waste heat recovery thermoelectric conversion device is more and more broad, in the future, such device will develop towards higher efficiency, more environmental protection and more intelligent, at the same time, with the popularization of renewable energy and the construction of distributed energy system, internal combustion engine waste heat recovery device will become an important part of future energy system.

[0003] When the worker needs to recycle the waste heat of internal combustion engine, the worker installs the thermoelectric conversion device on the exhaust pipe of internal combustion engine, and installs the upper surface of the first converter on the vehicle body, so that the thermoelectric conversion device can recycle the waste heat of internal combustion engine, but the existing thermoelectric conversion device will cause the temperature of cold end to be similar to that of hot end in the process of use, which will cause the conversion efficiency of thermoelectric conversion device to decrease in the process of use. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of conversion efficiency reduction of existing thermoelectric conversion device in the process of use, and proposes a kind of internal combustion engine waste heat recovery high-efficiency thermoelectric conversion device.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of internal combustion engine waste heat recovery high-efficiency thermoelectric conversion device, first converter is placed with second converter on the lower surface of the first converter, exhaust pipe is installed between the first converter and second converter, the one end of the second converter is provided with heat sink, the heat sink includes collar, the collar is sleeved on the lower surface of second converter, the outer surface of the collar is fixedly connected with fin, the both sides of the collar are fixedly connected with sliding sleeve, the inside of the sliding sleeve is equipped with sleeve groove, the sleeve groove is sleeved on the surface of the first converter and second converter, the both sides of the first converter are equipped with insertion hole, the both sides of the sliding sleeve are equipped with threaded hole, the inside threaded hole is connected with positioning rod, the positioning rod is inserted with the insertion hole of the surface of the first converter, the both sides of the second converter are equipped with insertion hole, the positioning rod is inserted with the insertion hole of the surface of the second converter, the insertion hole of the both sides of second converter can be matched with positioning rod to reach the purpose of storage positioning rod.

[0006] Preferably, the upper surface of the second converter is provided with mounting device, the mounting device includes stabilizing rod, the stabilizing rod is fixedly connected with the upper surface of the second converter, the first converter is sleeved on the outside of stabilizing rod, stabilizing rod can be matched with second converter and first converter to reach the purpose of limiting first converter.

[0007] Preferably, the surface of the stabilizing rod is equipped with guide slot, the both sides of the stabilizing rod are slidably connected with abutment, guide slot can be matched with stabilizing rod to reach the purpose of guiding limit block.

[0008] Preferably, the inside of the abutment is fixedly connected with limit block, the limit block is slidably connected with the inside of guide slot, the upper surface of the stabilizing rod is equipped with placing hole, limit block can be matched with abutment to reach the purpose of limiting abutment from stabilizing rod.

[0009] Preferably, the inside of the abutment is slidably connected with anti-skid rod, the anti-skid rod is placed on one side of stabilizing rod, pulling spring is fixedly connected between the anti-skid rod and abutment, pulling spring can be matched with anti-skid rod to reach the purpose of limiting abutment sliding.

[0010] Compared with prior art, the utility model has the advantages and positive effects that:

[0011] 1. The utility model discloses a heat dissipation device is set up, when the worker needs to heat the cold end of thermoelectric conversion device and carry out heat dissipation, the worker sets the lantern ring on the cold end of second converter, and the lantern ring drives the sliding sleeve, and the sleeve groove of the inner side of sliding sleeve sets up on first converter and second converter, when the lantern ring slides to the specified position, rotates the positioning rod, and the positioning rod extends and inserts the insertion hole of first converter and second converter, through setting heat dissipation device, can effectively facilitate the worker to heat the cold end of thermoelectric conversion device, avoids the cold end temperature of thermoelectric conversion device and the temperature of hot end similar, and further improves the conversion efficiency of thermoelectric conversion device.

[0012] 2. The utility model discloses an installation device is set up, when the worker needs to install first converter and second converter on the exhaust pipe, the worker sets first converter and second converter on the exhaust pipe, and first converter sets up on the stabilizer, pulls the antiskid rod, and the antiskid rod rises and separates the placement hole, and promotes the abutment, and the abutment drives the limiting block, and the limiting block is guided to the guide groove, when the abutment slides to the specified position, loosens the antiskid rod, and pulls the spring and pulls the antiskid rod, and the antiskid rod is opposite to the one side of stabilizer, through setting installation device, can effectively facilitate the worker to install first converter and second converter on the exhaust pipe, avoids the time -consuming situation when the worker installs first converter and second converter, and further improves the efficiency that the worker installs first converter and second converter. ACCURACY OF DRAWINGS

[0013] Figure 1 A three-dimensional structure schematic diagram of internal combustion engine waste heat recovery high -efficient thermoelectric conversion device is provided for the utility model;

[0014] Figure 2 A heat dissipation device structure schematic diagram of internal combustion engine waste heat recovery high -efficient thermoelectric conversion device is provided for the utility model;

[0015] Figure 3 A three-dimensional structure schematic diagram of internal combustion engine waste heat recovery high -efficient thermoelectric conversion device is provided for the utility model; Figure 2 The enlarged structure schematic diagram of place A in the middle;

[0016] Figure 4 An installation device structure schematic diagram of internal combustion engine waste heat recovery high -efficient thermoelectric conversion device is provided for the utility model;

[0017] Figure 5 A three-dimensional structure schematic diagram of internal combustion engine waste heat recovery high -efficient thermoelectric conversion device is provided for the utility model; Figure 4 The enlarged structure schematic diagram of place B in the middle.

[0018] Legend:

[0019] 1, first converter; 2, second converter; 3, heat dissipation device; 31, positioning rod; 32, sliding sleeve; 33, insertion hole; 34, sleeve groove; 35, threaded hole; 36, sleeve ring; 37, fin; 4, mounting device; 41, limiting block; 42, stabilizing rod; 43, guide groove; 44, stop block; 45, anti-skid rod; 46, pulling spring; 47, placement hole; 5, exhaust pipe. DETAILED DESCRIPTION

[0020] Please refer to Figures 1-5 The utility model provides a technical scheme: a kind of internal combustion engine waste heat recovery high-efficiency thermoelectric conversion device, including first converter 1, second converter 2 is placed in the lower surface of first converter 1, and exhaust pipe 5 is installed between first converter 1 and second converter 2, and heat dissipation device 3 is provided at one end of second converter 2.

[0021] The specific setting and effect of the heat dissipation device 3 and the mounting device 4 will be described below.

[0022] In this embodiment: heat dissipation device 3 includes sleeve ring 36, which is sleeved on the lower surface of second converter 2, the outer surface of sleeve ring 36 is fixedly connected with fin 37, the two sides of sleeve ring 36 are fixedly connected with sliding sleeve 32, the inner side of sliding sleeve 32 is provided with sleeve groove 34, which is sleeved on the surface of first converter 1 and second converter 2, the two sides of first converter 1 are provided with insertion hole 33, the two sides of sliding sleeve 32 are provided with threaded hole 35, the inside of threaded hole 35 is screw-connected with positioning rod 31, and positioning rod 31 is inserted with insertion hole 33 on the surface of first converter 1.

[0023] Specifically, insertion hole 33 is provided on the two sides of second converter 2, positioning rod 31 is inserted with insertion hole 33 on the surface of second converter 2, and insertion hole 33 on the two sides of second converter 2 can cooperate with positioning rod 31 to achieve the purpose of accommodating positioning rod 31.

[0024] Specifically, the upper surface of second converter 2 is provided with mounting device 4, and mounting device 4 includes stabilizing rod 42, which is fixedly connected with the upper surface of second converter 2, and first converter 1 is sleeved on the outside of stabilizing rod 42.

[0025] In this embodiment: stabilizing rod 42 can cooperate with second converter 2 and first converter 1 to achieve the purpose of limiting first converter 1.

[0026] In this embodiment: the surface of stabilizing rod 42 is provided with guide groove 43, and stop block 44 is slidingly connected on the two sides of stabilizing rod 42, and guide groove 43 can cooperate with stabilizing rod 42 to achieve the purpose of guiding limiting block 41.

[0027] Specific, the inner side of the block 44 is fixedly connected with a limiting block 41, the limiting block 41 is slidably connected with the inner part of the guide slot 43, and the upper surface of the stabilizing rod 42 is provided with a placing hole 47.

[0028] In the embodiment: the limiting block 41 can cooperate with the block 44 to achieve the purpose of limiting the block 44 from being separated from the stabilizing rod 42.

[0029] Specifically, the inner part of the block 44 is slidably connected with an anti-skid rod 45, the anti-skid rod 45 is placed on one side of the stabilizing rod 42, and the anti-skid rod 45 is fixedly connected with a pulling spring 46 between the block 44.

[0030] In the embodiment: the pulling spring 46 can cooperate with the anti-skid rod 45 to achieve the purpose of limiting the sliding of the block 44.

[0031] Working principle: by setting the heat dissipation device 3, when the worker needs to dissipate heat from the cold end of the thermoelectric conversion device, the worker sets the sleeve ring 36 on the cold end of the second converter 2, the sleeve ring 36 drives the sliding sleeve 32, the sleeve groove 34 on the inner side of the sliding sleeve 32 is set on the first converter 1 and the second converter 2, when the sleeve ring 36 slides to the specified position, the positioning rod 31 is rotated, the positioning rod 31 extends and is inserted into the insertion hole 33 of the first converter 1 and the second converter 2, by setting the heat dissipation device 3, the worker can effectively dissipate heat from the cold end of the thermoelectric conversion device, avoiding the temperature of the cold end of the thermoelectric conversion device being close to the temperature of the hot end, thereby improving the conversion efficiency of the thermoelectric conversion device, in addition, by setting the mounting device 4, when the worker needs to install the first converter 1 and the second converter 2 on the exhaust pipe 5, the worker sets the first converter 1 and the second converter 2 on the exhaust pipe 5, the first converter 1 is set on the stabilizing rod 42, the anti-skid rod 45 is pulled, the anti-skid rod 45 rises and is separated from the placing hole 47, the block 44 is pushed, the block 44 drives the limiting block 41, the limiting block 41 is guided by the guide slot 43, when the block 44 slides to the specified position, the anti-skid rod 45 is loosened, the pulling spring 46 pulls the anti-skid rod 45, the anti-skid rod 45 abuts against one side of the stabilizing rod 42, by setting the mounting device 4, the worker can effectively install the first converter 1 and the second converter 2 on the exhaust pipe 5, avoiding the time-consuming situation of the worker when installing the first converter 1 and the second converter 2, thereby improving the efficiency of the worker installing the first converter 1 and the second converter 2.

Claims

1. A high-efficiency thermoelectric conversion device for recovering waste heat from an internal combustion engine, comprising a first converter (1) having a second converter (2) placed on a lower surface of the first converter (1), and an exhaust pipe (5) installed between the first converter (1) and the second converter (2), characterized in that: One end of the second converter (2) is provided with a heat dissipation device (3), the heat dissipation device (3) includes a collar (36), the collar (36) is sleeved on the lower surface of the second converter (2), the outer surface of the collar (36) is fixedly connected with a cooling fin (37), both sides of the collar (36) are fixedly connected with a sliding sleeve (32), the inner side of the sliding sleeve (32) is provided with a sleeve groove (34), the sleeve groove (34) is sleeved on the surface of the first converter (1) and the second converter (2), both sides of the first converter (1) are provided with a jack (33), both sides of the sliding sleeve (32) are provided with a threaded hole (35), the threaded hole (35) is internally and threadedly connected with a positioning rod (31), the positioning rod (31) is inserted with the jack (33) on the surface of the first converter (1).

2. A high-efficiency thermoelectric conversion device for recovering waste heat from an internal combustion engine according to claim 1, characterized in that: Both sides of the second converter (2) are provided with a jack (33), and the positioning rod (31) is inserted with the jack (33) on the surface of the second converter (2).

3. A high-efficiency thermoelectric conversion device for recovering waste heat from an internal combustion engine according to claim 2, characterized in that: The upper surface of the second converter (2) is provided with a mounting device (4), the mounting device (4) includes a stabilizing rod (42), the stabilizing rod (42) is fixedly connected with the upper surface of the second converter (2), and the first converter (1) is sleeved on the outer side of the stabilizing rod (42).

4. A high-efficiency thermoelectric conversion device for recovering waste heat from an internal combustion engine according to claim 3, characterized in that: The surface of the stabilizing rod (42) is provided with a guide groove (43), and both sides of the stabilizing rod (42) are slidably connected with a stop block (44).

5. A high-efficiency thermoelectric conversion device for recovering waste heat from an internal combustion engine according to claim 4, characterized in that: The inner side of the stop block (44) is fixedly connected with a limiting block (41), the limiting block (41) is slidably connected with the inside of the guide groove (43), and the upper surface of the stabilizing rod (42) is provided with a placing hole (47).

6. A high-efficiency thermoelectric conversion device for recovering waste heat from an internal combustion engine according to claim 5, characterized in that: The inside of the stop block (44) is slidably connected with an anti-skid rod (45), the anti-skid rod (45) is placed on one side of the stabilizing rod (42), and the anti-skid rod (45) and the stop block (44) are fixedly connected with a pulling spring (46).