CN217740281U - Automobile wire harness terminal resistor - Google Patents
Automobile wire harness terminal resistor Download PDFInfo
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- CN217740281U CN217740281U CN202221896133.8U CN202221896133U CN217740281U CN 217740281 U CN217740281 U CN 217740281U CN 202221896133 U CN202221896133 U CN 202221896133U CN 217740281 U CN217740281 U CN 217740281U
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- resistor
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- fixing seat
- shell
- metal
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Abstract
The utility model discloses an automobile wire harness terminal resistor, which comprises a shell, a terminal fixing seat, a metal terminal and a resistor; the terminal fixing seat is arranged in the shell; the two metal terminals are arranged on the terminal fixing seat in parallel, and the heads of the two metal terminals are plated with gold and connected to two ends of the resistor respectively; and the resistor is connected with the metal terminal by mechanical crimping. The utility model provides a car wiring harness terminal resistance, it is small, adapt to various installation occasions, for example, the chassis installation, or the installation in the driver's cabin. The terminal adopts gold plating with good electrical performance, and the terminal and the resistor are in a compression joint mode, so that the connection is reliable. The terminal resistor has strong anti-interference capability and can lead high-frequency and low-energy signals to rapidly go away; meanwhile, the bus is ensured to rapidly enter a recessive state, so that the energy of the parasitic capacitor is more rapidly lost; can be placed at two ends of the bus to reduce the reflected energy and improve the signal quality.
Description
Technical Field
The utility model relates to a car wiring harness technical field especially relates to a car wiring harness terminal resistance.
Background
The element that blocks the flow of current in the circuit is called a resistor (resistor for short). The resistors are of various types, and usually, fixed resistors, variable resistors, sensitive resistors, resistors and the like are used. The resistance is one of the most used basic elements in an automobile circuit, and the quality of the resistance has great influence on the stability of the circuit operation. The main purpose of the car resistor is to stabilize and regulate the current and voltage in the circuit, and secondly to act as a shunt, voltage divider and load.
The termination resistance is a resistance connected in parallel to a pair of communication lines at both ends (two communication ports located at the farthest distance) of the line network. According to the transmission line theory, the terminal resistor can absorb the reflected wave on the network, and effectively enhance the signal strength. The value of the two termination resistors connected in parallel should be substantially equal to the characteristic impedance of the transmission line at the communication frequency. The value of the terminal matching resistance depends on the impedance characteristics of the cable, regardless of the length of the cable. RS-485/RS-422 are typically connected using twisted pair wires (shielded or unshielded), with termination resistances typically between 100 and 140 omega, typically 120 omega. In practical configuration, two terminal nodes of the cable, namely the most proximal end and the most distal end, are respectively connected with a terminal resistor, while the node in the middle part can not be connected with the terminal resistor, which otherwise causes communication errors.
The brake resistor for current detection is mainly used for overcurrent protection of a motor driving circuit and a power supply and battery power detection. In the automobile market, industrial equipment market, computer market, and the like, applications have been widely performed, and particularly in the automobile market in recent years, the applications have been rapidly advanced in high performance and electronics in the entire market, driven by the development of electric vehicles and hybrid vehicles.
The imported brake resistor has a shape different from that of a domestic product, is relatively small and delicate, is made of a material different from that of the domestic product, but has a very high price which is 6-8 times that of the domestic product. Although the domestic products have no import delicacies, the domestic products are the mainstream of matching frequency converters at present, and have the advantages of low price, convenience for after-sale service, timely supply and better corrosion resistance than the imported products. However, the reliability of the current domestic terminal resistor is poor, the volume is large, the maintenance and the disassembly are not convenient enough, and the current domestic terminal resistor can not adapt to various installation occasions, such as the installation in a chassis or a cab, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above-mentioned technical problem, a car wiring harness terminal resistance is provided.
In order to achieve the above object, the present invention provides the following technical solutions:
an automobile wire harness terminal resistor comprises a shell, a terminal fixing seat, a metal terminal and a resistor; the terminal fixing seat is arranged in the shell and is fixed through a clamping structure; the two metal terminals are arranged on the terminal fixing seat in parallel, and the heads of the two metal terminals are plated with gold and connected to two ends of the resistor respectively; and the resistor is connected with the metal terminal by mechanical crimping.
Furthermore, the terminal fixing seat is made of plastic.
Further, the resistance is 120 Ω resistance.
Further, the power of the resistor is 0.5W, and the resistor bears the voltage of 300V.
Furthermore, the bottom of the shell is provided with a clamping groove for connecting and fixing the buckle.
Furthermore, two sides of the shell are provided with binding belt mounting holes.
Further, the housing is connected to the automotive wiring harness through a connector.
Furthermore, one end, far away from the resistor, of the shell is provided with a connector interface for installing a male connector end, and the male connector end is matched with a female connector end reserved on an automobile wire harness.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a car wiring harness terminal resistance, it is small, adapt to various installation occasions, for example, the chassis installation, or the installation in the driver's cabin. The terminal adopts gold plating with good electrical performance, and the terminal and the resistor are in a compression joint mode, so that the connection is reliable. The terminal resistor has strong anti-interference capability and can lead high-frequency and low-energy signals to rapidly go away; meanwhile, the bus is ensured to rapidly enter a recessive state, so that the energy of the parasitic capacitor is more rapidly lost; can be placed at two ends of the bus to reduce the reflected energy and improve the signal quality.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a sectional view of the terminal resistor of the automotive wiring harness provided by the embodiment of the present invention.
Fig. 2 is a bottom view of the terminal resistor of the automobile wire harness provided by the embodiment of the utility model.
Fig. 3 is a top view of the terminal resistor of the automobile wire harness provided by the embodiment of the present invention.
Fig. 4 is a right side view of fig. 3.
Fig. 5 is a cross-sectional view of fig. 3.
Description of reference numerals:
the connector comprises a shell 1, a terminal fixing seat 2, a metal terminal 3, a resistor 4, a clamping groove 5, a ribbon mounting hole 6 and a connector interface 7.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-5, the utility model provides an automobile wire harness terminal resistor, including shell 1, terminal fixing base 2, metal terminal 3 and resistance 4.
The shell 1 is connected with an automobile wiring harness through a connector. Specifically, the end, far away from the resistor 4, of the shell 1 is provided with a connector interface 7 for installing a connector male end, and the connector male end is matched with a connector female end reserved on an automobile wire harness. The shell is made of PBT + GF30 materials, and the dustproof and waterproof grade can reach IP6K9K. The bottom of the shell 1 is provided with a clamping groove 5 for connecting and fixing the buckle. And two sides of the shell 1 are provided with binding belt mounting holes 6. The fixed mode of terminal resistance has two kinds, firstly sleeps to prick on the pencil with the ribbon, secondly fixes on the panel beating with fixed buckle, and is nimble various.
The terminal fixing seat 2 is arranged inside the shell 1; the terminal fixing seat 2 is made of plastic. The terminal fixing seat 2 is fixed with the shell 1 through a clamping structure. The automobile inspection device is convenient to maintain, convenient to disassemble during vehicle inspection and easy to replace.
The two metal terminals 3 are arranged in parallel, the two metal terminals 3 are arranged on the terminal fixing seat 2 in parallel, and the heads of the two metal terminals 3 are plated with gold and connected to two ends of the resistor 4 respectively; the resistor 4 and the metal terminal 3 are connected by mechanical crimping. The terminal adopts gold plating with good electrical performance, and the terminal and the resistor are in a compression joint mode, so that the connection is reliable.
The resistor 4 is a 120 Ω resistor. The power of the resistor 4 is 0.5W, and the voltage is 300V. The tolerance is within 5%. The terminal resistor has strong anti-interference capability, and can enable high-frequency and low-energy signals to rapidly go away; meanwhile, the bus is ensured to rapidly enter a recessive state, so that the energy of the parasitic capacitor is removed more rapidly; can be placed at two ends of the bus to reduce the reflected energy and improve the signal quality.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The terminal resistor for the automobile wire harness is characterized by comprising a shell, a terminal fixing seat, a metal terminal and a resistor; the terminal fixing seat is arranged in the shell and is fixed through a clamping structure; the two metal terminals are arranged on the terminal fixing seat in parallel, and the heads of the two metal terminals are plated with gold and connected to two ends of the resistor respectively; and the resistor is connected with the metal terminal by mechanical crimping.
2. The automotive wire harness termination resistor of claim 1, wherein the terminal holder is made of plastic.
3. The automotive harness termination resistor of claim 1, wherein the resistor is a 120 Ω resistor.
4. The automotive harness termination resistor of claim 1, wherein the resistor has a power of 0.5W and a voltage of 300V.
5. The automotive harness termination resistor of claim 1, wherein the bottom of the housing is provided with a snap groove for connecting a fixing clip.
6. The automotive wire harness termination resistor of claim 1, wherein strap mounting holes are provided on both sides of the housing.
7. The automotive harness termination resistor of claim 1, wherein the housing is connected to an automotive harness by a connector.
8. The automotive harness termination resistor of claim 7, wherein the housing has a connector port at an end thereof remote from the resistor for receiving a male connector end and mating with a female connector end of an automotive harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221896133.8U CN217740281U (en) | 2022-07-22 | 2022-07-22 | Automobile wire harness terminal resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221896133.8U CN217740281U (en) | 2022-07-22 | 2022-07-22 | Automobile wire harness terminal resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217740281U true CN217740281U (en) | 2022-11-04 |
Family
ID=83850372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221896133.8U Active CN217740281U (en) | 2022-07-22 | 2022-07-22 | Automobile wire harness terminal resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217740281U (en) |
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2022
- 2022-07-22 CN CN202221896133.8U patent/CN217740281U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |