Shenwan Hongyuan Group Co.Ltd(000166) securities underwriting and recommendation Co., Ltd
About Chongqing Yuxin Pingrui Electronics Co., Ltd
Initial public offering and listing on GEM
Listing recommendation
Sponsor
May, 2002
Shenzhen Stock Exchange:
As the sponsor of Chongqing Yuxin Pingrui Electronics Co., Ltd. for initial public offering and listing on the gem, Shenwan Hongyuan Group Co.Ltd(000166) securities underwriting sponsor Co., Ltd. and its sponsor representative have been in accordance with the company law of the people's Republic of China, the securities law of the people's Republic of China and the measures for the administration of the registration of initial public offering of shares on the gem (for Trial Implementation) (hereinafter referred to as the "Registration Measures") Laws and regulations such as the Shenzhen Stock Exchange gem stock issuance and listing review rules and the relevant provisions of the CSRC and Shenzhen Stock Exchange are honest, trustworthy, diligent and responsible, issue the listing recommendation letter in strict accordance with the business rules and industry self-discipline norms formulated according to law, and ensure that the documents issued are true, accurate and complete.
The relevant information is reported as follows:
1、 Basic information of the issuer
(I) basic information
1. Company name: Chongqing Yuxin Pingrui Electronics Co., Ltd
2. English Name: Chongqing Yuxin Pingrui Electronic Co., Ltd
3. Registered capital: 55.03 million yuan
4. Registered address: No. 992, Gaoteng Avenue, Jiulongpo District, Chongqing
5. Registration time: September 8, 2015
6. Legal representative: Hu Yunping
7. Department responsible for information disclosure and Investor Relations: Securities Affairs Department
8. Person in charge of information disclosure and Investor Relations: Hu Xinrui
9. Tel: 02365816392
10. Email: [email protected].
(II) the issuer's main business, core technology and R & D level
1. Main business
The issuer is mainly engaged in the R & D, production and sales of core electronic control components of general gasoline engines and end products. General purpose gasoline engine refers to the gasoline engine other than vehicle and special purpose, also known as small general purpose gasoline engine or general engine for short, which has a wide range of production and living uses.
The issuer's main products are the core components of general gasoline engine and terminal products, mainly covering three categories: general gasoline electromechanical assembly parts, including igniter, flywheel, charging coil, etc; Generator power supply system accessories, including converter, voltage regulator, permanent magnet motor stator and rotor, etc; Electric garden tools and low-speed new energy vehicle accessories, such as range extender and controller, drive motor and controller, etc.
The issuer is a global manufacturer of general gasoline engines and end product accessories with leading production scale and market share. According to the certificate provided by the small gasoline engine branch of China Gas Turbine Industry Association, during the reporting period, the issuer's core product general gasoline engine igniter ranked first in the global market share, and the digital frequency conversion generator converter ranked third in the global market share. In 2019, the company was selected by the Ministry of industry and information technology as the first batch of specialized special new "little giant" enterprises, and the only one of the first batch of national specialized special new "little giant" enterprises in the subdivided field of machine igniter and converter.
During the reporting period, the main customers outside China include Loncin Motor Co.Ltd(603766) , Briggs Stratton, honda power, Yamaha, JAC power, Kohler, Generac and other well-known enterprises in the field of foreign communication machinery in China.
The company's main business is outstanding. In 2019, 2020 and 2021, the proportion of the company's main business income in the operating income is 98.45%, 98.30% and 98.88% respectively. Since its establishment, the company's main business has not changed significantly.
2. Core technology
(1) Core technology of general gasoline electromechanical assembly parts
Sequence technology overview, technology source, patent protection and product application
Number name
TCI point \uf0fc obtained through independent research and development;
The firearm limit module is directly connected to the flameout line of the igniter in parallel \uf0fc it has obtained the invention patent "TCI 1 speed control with speed limit function and grounding wire, which effectively realizes the accurate and real point firearm circuit" (2016104435923); Technical and reliable flying car protection function. \uf0fc tj101-2zc-s, tj1198 and other series igniters.
Micro single chip microcomputer is introduced into the igniter, and the ignition \uf0fc is obtained through independent research and development;
The CDI point angle is adjusted in real time according to the advance of the output trigger pulse signal \uf0fc it has obtained the utility model patent "small car 2 fire technology or delay, so as to accurately control the CDI igniter circuit" (2016206069255); Engine power and speed. \uf0fc tj1167, tj1107-1 and other series igniters.
Hall letter has a built-in one in the igniter, which is small and inductive \uf0fc obtained through independent research and development;
No. 1 integrates Hall elements with accurate position to realize trigger and \uf0fc has obtained the utility model patent "an integrated igniter of three structure numbers of Hall signal 3 ignition technology, high-voltage ignition coil and ignition module" (2018211815851); Digital igniter with integrated technology and miniaturized volume. \uf0fc tj1221 series igniter.
4. Integrated multi circuit part is concentrated in the igniter, which will be obtained through independent research and development;
Sequence technology overview, technology source, patent protection and product application
Number name
The functions of speed limit, ignition and oil alarm are integrated into \uf0fc it has obtained the invention patent "integrated multi-functional general engine ignition, which effectively reduces the manufacturing defect rate and can ignite gasoline engine" (2018222284324); The technology can better eliminate engine faults and add \uf0fc tj1198 series igniter.
Reliability, which is conducive to the later maintenance of the engine.
Provide external Hall elements through perforated flywheel \uf0fc obtained through independent research and development;
The external rotor signal is simpler in structure and processing. It has obtained the utility model patent "an external rotor type 5 flywheel is simpler, increases the reliability of production and is convenient for generator flywheel" (2018211815832); The integrated processing of other components of the technical ignition system enables the tj714g series and tj714m series motors to fly in the overall space optimization of the system.
Wheel.
(2) Core technology of generator power system accessories
Sequence technology overview, technology source, patent protection and product application
Number name
Frequency conversion power generation solves the problem that one generator cannot drive different electricity \uf0fc obtained through independent research and development;
The problem of voltage specification load of motor unit and the inability to drive high power \uf0fc it has obtained the utility model patent "the problem of high-power power consumption equipment generated by general gasoline", which has broken through the high-power dual voltage inverter circuit structure of motor in the United States and Japan "(2019202836779). It is applying for the technical blockade of special inverter technology to make it simple to combine, small circulating current Profit (201910685530);
Low unbalance, high-power dual output, volume \uf0fc tj838-7kd, tj838-7dsc and other inverters. The advantages of small and low price are favored by the market.
Obtained through independent research and development;
Frequency conversion generator \uf0fc has obtained the utility model patent "a fuel oil transformer unit adopts advanced phase-shifting full bridge scheme, accurate frequency generator unit output voltage adjustable DC power supply 2 output synchronous rectification, high voltage and current control accuracy, circuit" (2018220425224), and is applying for adjustable voltage and small current fluctuation. Ming patent (2018114882617);
Technical \uf0fc tj9040-v1 8A power lithium battery charging system.
The converter proposes a simplified positive and negative voltage driving power \uf0fc obtained through independent research and development;
The power converter device solves the problem of "a new driving circuit of current converter power device with misguided conduction caused by power transistor junction capacitance" in the inverter full bridge driving circuit, which has obtained the utility model patent, and improves the reliability of the inverter system
Type drive reduces IGBT inefficiency; And simple structure, (2017219235760);
Low technology cost, stable and reliable performance. \uf0fc tj848 series and tj858 series inverters.
The frequency conversion generator outputs the sampling station through the main control MCU of the inverter \uf0fc obtained through independent research and development;
4. The motor unit needs high-precision reference voltage value; When IGBT has obtained the utility model patent due to \uf0fc "when the current carrying capacity of general gasoline generator inverter decreases due to high temperature, a new sampling circuit of motor inverter can be"
Sequence technology overview, technology source, patent protection and product application
Number name
The reference power is controlled by detecting the temperature of the inverter (2019202905919);
Sample technical voltage and adjust IGBT protection current value in real time; \uf0fc tj848 series inverter.
Peak current and RMS current are sampled in two channels
Independent system ensures RMS current sampling
Accuracy and real-time performance of peak current.
\uf0fc independent research and development;
The disc permanent magnet single disc iron core adopts combined assembly structure \uf0fc it has obtained the utility model patent "a disc permanent magnet electric mechanism; the processing methods of each component can be realized by stamping, magneto stator iron core structure" 5 stator iron die casting and other traditional processing methods, which is convenient for (2018222662690). It is applying for the invention of special core technology processing and cost control; Re assembly after winding, Li (201811619835. X);
Simple and convenient, convenient for large-scale production. Small batch trial production of ypk1004 series magneto stator.
A plurality of are arranged on the stator ring skeleton
The outer rotor is axially parallel through-line through holes and a plurality of connectors
Type multipole mounting through hole, which is convenient for one-time injection molding; Obtained through independent research and development;
The generator connector adopts the "plug-in" fastening method, and has obtained the utility model patent "multiple 6 external rotor type, simple and convenient assembly; the connector is linear, pole generator stator" (2013207943286); The stator is fastened at one end and connected at one end, with simple structure. The stator of series magnetos such as tj703 and tj714. The connection of technical harness is reliable, which reduces the processing difficulty and cost
Cost.
In the inner rotor structure, due to the use of "axial flow separation"
The ingenious cooperation of "double fan heart" and two fans greatly improves \uf0fc obtained through independent research and development;
The inner rotor improves the utilization rate of air; Improve the air utilization rate \uf0fc it has obtained the utility model patent "a double fan 7 rare earth permanent high, which is convenient for all parts of the generator and some engine generator cooling system" (2019216518502); Heat dissipation of magnetoelectric components to improve generator load and \uf0fc tj751 series magnetoelectric.
Technical overload capacity; Effectively reduce the motor volume and improve
High power density.
(3) Core technology of new energy products
Sequence technology overview, technology source, patent protection and product application
Number name
Enhanced electronic control
