Northeast Securities Co.Ltd(000686)
about
Zhuhai Enpower Electric Co.Ltd(300681) issuing A-share shares to specific objects and listing on the gem
Listing recommendation
(address: No. 6666, ecological street, Changchun)
February, 2002
Statement
In accordance with the company law of the people’s Republic of China, the securities law of the people’s Republic of China and other laws and regulations, as well as the relevant provisions of the CSRC and Shenzhen Stock Exchange, the recommendation institution and its recommendation representative have been honest, trustworthy, diligent and responsible, issued the listing recommendation letter in strict accordance with the business rules and industry self-discipline norms formulated according to law, and guaranteed that the documents issued are true, accurate and complete.
Unless otherwise specified, the abbreviation in this listing recommendation letter has the same meaning as the abbreviation in the prospectus for Zhuhai Enpower Electric Co.Ltd(300681) issuing A-Shares to specific objects and listing on GEM.
Northeast Securities Co.Ltd(000686)
About Zhuhai Enpower Electric Co.Ltd(300681)
Shenzhen Stock Exchange:
Zhuhai Enpower Electric Co.Ltd(300681) plans to raise no more than 976315800 yuan (including this amount) by issuing shares to specific objects, Northeast Securities Co.Ltd(000686) as the sponsor of Zhuhai Enpower Electric Co.Ltd(300681) this issuance, according to the provisions of the company law, the securities law, the registration measures, the listing rules and other relevant laws, regulations and normative documents, it is considered that Zhuhai Enpower Electric Co.Ltd(300681) still meets the conditions for stock listing after the completion of this issuance, It is hereby recommended that the shares issued this time be listed and traded in your exchange. The relevant information is reported as follows:
1、 Basic information of the issuer
(I) Company Profile Chinese name Zhuhai Enpower Electric Co.Ltd(300681)
English Name: Zhuhai empower Electric Co., Ltd
Legal representative: Jiang Guibin
Date of establishment: January 14, 2005
Stock abbreviation Zhuhai Enpower Electric Co.Ltd(300681) stock code 300681 Shenzhen stock exchange where SZ shares are listed
Registered capital: 75600000 yuan
Registered address: Building 1, No. 6, Keji 6th Road, Tangjiawan Town, high tech Zone, Zhuhai
Postal Code: 519085 Tel: 0756-6860880 Fax: 0756-6860881 company website http://www.enpower.com./ E-mail [email protected].
Development, production, business scope, processing (except restricted and prohibited categories) and sales of electrical products, electronic components and products, motor vehicle parts and components, computer software and hardware; Wholesale and retail of Wujinjiaodian and storage battery. (for projects subject to approval according to law, business activities can be carried out only after approval by relevant departments). Technical services.
Note: according to the articles of Association (January 2022) and the comparison table of amendments to the articles of Association issued by the Issuer on January 26, 2022, due to the change of share capital caused by the exercise of employee stock options, as of December 31, 2021, the share capital of the issuer has increased to 76.60102 million shares. The registered capital and other industrial and commercial registration items have not been changed.
(II) main business of the company
The company is an enterprise focusing on the R & D, production and sales of core components of new energy vehicle power system. Relying on years of product R & D and technological innovation, the company’s products have covered the fields of new energy passenger vehicles, new energy commercial vehicles, micro low-speed vehicles and new energy special vehicles. The company always pursues excellent quality and provides high-quality service, and is committed to becoming a first-class supplier of new energy vehicle power system in the industry.
The company’s main products are new energy vehicle drive assembly, power supply assembly, motor controller, DC-DC converter and other core parts of new energy vehicle power system, involving two “electricity” in the “big three electricity” of new energy vehicles – motor and electronic control.
In recent years, with the rapid development of the new energy vehicle industry, the core components of the power system of new energy vehicles show the development trend of integration, lightweight and intelligence, and the discrete components are gradually developing in the direction of assembly. In order to comply with the development trend of the industry, the company promotes the process of product integration through technological innovation. At present, the company has developed the third generation of “integrated core” products, which integrate the drive assembly and power assembly to realize further multi-functional integration. The core parts of the power system of the integrated architecture have considerable competitive advantages in the industry.
The details of the company’s main products are as follows:
Introduction to main product examples and functions
Through the active work of the integrated circuit, the motor is controlled to work according to the set square motor control direction, speed, angle and response time. According to the gear, accelerator, brake and other commands, the starting and running, forward and backward speed, climbing force and other driving states of the electric vehicle are controlled.
Assembly is an electromagnetic motor device that converts or transmits electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque as the Beijing Dynamic Power Co.Ltd(600405) of new energy vehicles.
Introduction to main product examples and functions
The drive assembly is an integrated product of motor, motor controller and reducer, which is the core component to drive new energy vehicles.
On board charging is to charge the power battery of new energy vehicles, and charge the electric energy of 220V civil power grid machine into the power battery to complete the charging process.
The DC-DC conversion of the power supply converts the voltage of the power battery pack of new energy vehicles to provide electric energy for instruments, assembly converters, lamps, wipers and other electrical appliances.
It is an integrated product including on-board charger, DC-DC converter and PDU. The power supply assembly is the core component for charging, power conversion and power distribution of power battery pack.
“Five in one” is an integrated product including drive assembly, PDU and DC-DC converter. The “one in one” power is suitable for new energy vehicles adopting power exchange scheme.
“Multi in one” system assembly
product
“Six in one”
The power system is an integrated product including drive assembly and power supply assembly.
Assembly
(III) core technology and R & D level of the company
After years of independent research and development, the company has mastered several core technologies in the field of new energy drive system, which not only lays a technical foundation for the company to quickly respond to market demand and launch products with stable performance and reliable quality, but also promotes the development and breakthrough of new energy vehicle industry. As of September 30, 2021, the core technologies owned by the company are as follows:
S / N technical name technical characteristics stage technical source
Motor, electric control and reduction this technology is based on motor, motor controller, reducer
Speed box, OBC, OBC, DC-DC, PDU and other products have different parties
1. The integration of DC-DC and PDU projects can form a batch production, independent research and development of multi in one integrated technology, three in one power supply, three in one drive assembly and six in one power drive according to the scheme needs of different customers
Various integration schemes such as technology i.
S / N technical name technical characteristics stage technical source
Motor, electric control and reduction this technology uses the motor and electric control to share a shell
The speed box is highly integrated into a cylinder, and the motor controller adopts a ring
2. The integrated design technology circuit layout adopts discrete power devices, circular support capacitors, mass production, independent research and development technology and laminated busbar components, which are integrated at the rear end of the motor shaft,
A high degree of integration of related products has been realized.
This technology adopts multi-layer stacking process to integrate the power tube and its control
The OBC and control circuit are set as the first layer, and the transmission of auxiliary power supply and charger
The dc-d body C input and output circuit is set as the second layer, DC-DC
3. The height set conversion circuit is set as the third layer and close to each other on the premise of mass production, independent research and development of movement technology and ultra-thin design
The heat dissipation of the backplane reduces the volume of the integrated power supply and further
It reduces the product cost and realizes higher space utilization.
This technology combines the basic theory and finite element method of permanent magnet synchronous motor
The electric element simulation technology of large quadrature axis magnetic circuit is to improve the proportion of reluctance torque in the motor
The starting point of 4-sense structure topology technology is to improve the reluctance torque, reduce the amount of independent research and development technology for mass production of permanent magnets, improve the comprehensive power density, and greatly increase the motor
The torque density further reduces the cost.
This technology is based on harmonic suppression technology, by controlling the internal harmonic of the motor
5. Suppress the harmonic content of NVH excellent and harmful magnetic field and reduce the exciting force of motor, so as to improve the NVH performance of self-developed topology technology machine for electric mass production and reduce the noise of the whole vehicle.
High efficiency copper rotor asynchronous motor adopts rotor copper guide bar and copper end
The seamless welding technology of copper rotor asynchronous electric ring makes the maximum efficiency of the product reach 96%,
The continuous power of the design and process of the 6 machine can reach 60kW, the peak power can reach 145kw, the batch production, independent R & D and manufacturing technology, the rated speed can reach 6000r / min, and the maximum speed can reach 6000r / min
16000r/min。
This technology is based on distributed capacitor stacked bus technology and PCB
The high current laminated power bus bar technology of pipe wave soldering solves and
MOSFET / IGBT linkage static current sharing problem to solve the problem of parallel reliability and reduce
7. Parallel mass production of power devices, independent research and development of integrated technology, small volume, reduce system cost and improve structural design flexibility,
The power density is further improved.
This technology adopts bidirectional bridgeless AC-DC in the front stage and
The two-way full bridge clllc is used to isolate the DC-DC circuit
The circuit of charging and discharging functions is shared; By using new
8. The magnetic integration technology of bidirectional high-performance Che Ying realizes the mass production of four magnetic components in the resonant circuit, and independently develops the technical integration of the charger, which greatly reduces the volume and weight of magnetic components; through
Through the use of novel power tube upside down and front disassembly technology
The utility model has the advantages of simple structure, simple loading and unloading and occupation
Small space.
High performance magnetic element this technology uses plane transformer and bus copper bar to realize high power
The 9-piece on-board current multi turn inductor technology not only significantly improves the mass production of magnetic devices, but also independently develops DC-DC technology. At the same time, it also has the characteristics of small volume, good heat dissipation performance and machinability
Strong and other advantages.
This technology is designed through the parallel connection of discrete SiC Power MOS,
Control of SiC for hybrid electric vehicle
