Terminal module and electric connector

Abstract

The utility model is suitable for the field of electric appliance element plug connectors, and provides a terminal module and an electric connector. Comprising at least one high-speed terminal group and a power supply terminal arranged corresponding to each terminal group, and the high-speed terminal group comprises two grounding terminals and a pair of high-speed differential terminals arranged between the two grounding terminals; the power supply terminal is connected with one grounding terminal through the FPC board, and an RC circuit is arranged on the FPC board. The beneficial effects of the utility model lie in that the FPC board is arranged between the power supply terminal and the grounding terminal to carry the RC circuit, and the RC circuit plays a filtering role, so that electromagnetic interference generated by equipment is prevented from entering a power line, and interference on the power line is prevented from entering the equipment at the same time. The output stability of the power supply is enhanced, and particularly, the stable output of the power supply is facilitated under the no-load condition. And a capacitor is welded on the differential signal, electric energy is stored, filtering is performed, and circuit frequency is adjusted, so that the high-frequency signal transmission performance is improved.

Description

Technical Field

[0001] The utility model belongs to the field of electrical component connectors, and in particular relates to a terminal module and an electric connector. Background Art

[0002] An electrical connector is also called an electrical connector. It is used to connect two active devices so that current or signals can be transmitted between the two active devices. Using an electrical connector to connect active devices is easy to assemble and disassemble, and is easy to repair and replace. It is widely used in production and life.

[0003] When connecting electrical appliances, useful signals and noise (useless signals) are mixed together during the transmission of current or signals, the frequency components of the signals are complex, and the signal's anti-interference and signal-to-noise ratio are low, which in turn affects the signal quality and causes the electrical connector to have low transmission performance for high-frequency signals.

[0004] Under normal circumstances, the method of adjusting the width of the terminal is often used to average the impedance to improve the transmission performance of high-frequency signals. However, for some smaller products, the terminal interface is also smaller and the rear-end wire is thicker, and the method of adjusting the width of the terminal cannot be used to improve the transmission performance of the product's high-frequency signal. Utility Model Content

[0005] The embodiment of the utility model provides a terminal module, aiming to solve the problem of low transmission performance of high-frequency signals for products with smaller terminal interfaces.

[0006] The embodiment of the utility model is implemented as follows: a terminal module includes at least one group of high-speed terminal groups and a power terminal corresponding to each group of the terminal groups, wherein the high-speed terminal group includes two ground terminals and a pair of high-speed differential terminals arranged between the two ground terminals;

[0007] The power terminal is connected to one of the ground terminals via an FPC board, and an RC circuit is arranged on the FPC board.

[0008] Optionally, the RC circuit includes a first capacitor and a first resistor, and the first capacitor and the first resistor are connected in series.

[0009] Optionally, the power terminal is disposed at one side of the high-speed terminal group, and the power terminal is connected to the adjacent ground terminal in the corresponding terminal group via an FPC board.

[0010] Optionally, a second capacitor is provided on each of the high-speed differential terminals.

[0011] Optionally, a break is provided on each of the speed differential terminals, and the break is connected by the second capacitor.

[0012] An embodiment of the utility model further provides an electrical connector, comprising at least one set of the above-mentioned terminal modules and at least one set of the above-mentioned high-speed terminal groups.

[0013] Optionally, it also includes an insulating body and an injection molded part;

[0014] The high-speed terminal group and the terminal module are arranged on the insulating body through the injection molded part.

[0015] Optionally, the electrical connector further comprises a blister colloid;

[0016] The injection molded part is provided with a receiving groove to receive the RC circuit;

[0017] The plastic blister colloid is filled into the containing groove through secondary injection molding.

[0018] The beneficial effect of the utility model is that, since an RC circuit is provided on an FPC board between the power terminal and the ground terminal, the RC circuit plays a filtering role, preventing electromagnetic interference generated by the device itself from entering the power line, and preventing interference on the power line from entering the device. This enhances the stability of the power output, especially in the case of no-load, which is more beneficial to the stable output of the power supply, so as to improve the high-frequency signal transmission performance.

[0019] A break is set on the differential terminal, and the break is connected by a capacitor to store electrical energy, filter, and adjust the circuit frequency to improve the high-frequency signal transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a high-speed terminal group provided by an embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a terminal module provided by an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the terminal arrangement in the electrical connector provided by the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the overall structure of the electrical connector provided by the embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the disassembled structure of the electrical connector provided by the embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 100, high-speed terminal group; 101, ground terminal; 102, high-speed differential terminal; 103, second capacitor;

[0027] 200, terminal module; 201, power terminal; 202, FPC board; 203, RC circuit;

[0028] 300, electrical connector; 301, insulating body; 302, injection molded part; 303, blister colloid; 304, plastic gasket. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0035] In the utility model, an FPC board carrying an RC circuit is arranged between a power terminal and a ground terminal, and a filtering effect is achieved through the RC circuit, so as to improve the high-frequency signal transmission performance.

[0036] Embodiment 1

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a terminal module 200, including at least one set of high-speed terminal groups 100 of the first or second embodiment and a power terminal 201 corresponding to each terminal group, the high-speed terminal group 100 includes two grounding terminals 101 and a pair of high-speed differential terminals 102 arranged between the two grounding terminals 101;

[0038] The power terminal 201 is connected to one of the ground terminals 101 via an FPC board 202 , and an RC circuit 203 is provided on the FPC board 202 .

[0039] The terminal is a wiring terminal, also known as a wiring terminal, which is mainly used to transmit electrical signals. The high-speed differential terminal 102 is used to transmit high-frequency signals, and the two ground terminals 101 separate the high-speed differential terminals, that is, separate the high-frequency signals, to better resist interference, crosstalk and attenuation.

[0040] RC circuit 203, full name of resistance-capacitance circuit (English: Resistor-Capacitance circuit), an RC circuit 203 consists of a resistor and a capacitor. The RC circuit 203 connected in parallel in the circuit has the function of attenuating high-frequency signals, that is, filtering.

[0041] Because of the presence of capacitors, DC current cannot flow through. Both resistors and capacitors have an obstructive effect on current. The total impedance is determined by the resistance and capacitive reactance, and the total impedance changes with frequency. RC series has a turning frequency: f0 = 1 / 2πR1C1 (where R1 is the resistance of the resistor and C1 is the capacitance of the capacitor). When the input signal frequency is greater than f0, the total impedance of the entire RC series circuit remains basically unchanged, and its size is equal to R1.

[0042] The FPC board 202, also known as a flexible circuit board or soft board, is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as a substrate. It has the characteristics of high wiring density, light weight and thin thickness. The two ends of the FPC board 202 are respectively welded to the power terminal 201 and any ground terminal 101. The FPC board 202 is used as a medium, and the RC circuit 203 is carried on the FPC board 202. The RC circuit 203 is connected between the power terminal 201 and any ground terminal 101, so that the RC circuit 203 is closer to the contact end, and the filtering effect is better.

[0043] In this embodiment, an FPC board 202 is provided with an RC circuit 203 between the power terminal 201 and the ground terminal 101 , and the RC circuit 203 plays a filtering role to improve the high-frequency signal transmission performance.

[0044] In one embodiment, the RC circuit 203 includes a first capacitor and a first resistor, and the first capacitor and the first resistor are connected in series.

[0045] Embodiment 2

[0046] like Figure 2 As shown, based on the first embodiment, the power terminal 201 is disposed on one side of the high-speed terminal group 100 , and the power terminal 201 is connected to the adjacent ground terminal 101 in the corresponding terminal group through the FPC board 202 .

[0047] The power terminal 201 is arranged side by side with the high-speed terminal. When the power terminal 201 is arranged on the left side of the high-speed terminal group 100, it is adjacent to the leftmost ground terminal 101 in the high-speed terminal. When the power terminal 201 is arranged on the right side of the high-speed terminal group 100, it is adjacent to the rightmost ground terminal 101 in the high-speed terminal. The power terminal 201 and the adjacent ground terminal 101 are connected through an FPC, the connection distance is short, and the spatial layout is reasonable.

[0048] Embodiment 3

[0049] like Figure 1 and Figure 2 As shown, based on the first embodiment, a second capacitor 103 is provided on each high-speed differential terminal 102 .

[0050] During the transmission of high-frequency signals, the internal resistance of the signal source is not equal to the characteristic impedance of the connected high-speed differential terminal 102, which may cause uneven transmission of signal energy and signal reflection. The second capacitor 103 is arranged on each high-speed differential terminal 102, so that the internal resistance of the signal source and the characteristic impedance of the connected high-speed differential terminal 102 are equal in magnitude and phase, forming impedance matching, thereby allowing high-frequency microwave signals to be transmitted through the high-speed differential terminal 102, with almost no signal reflection, thereby improving energy efficiency.

[0051] It can be understood that the second capacitor 103 increases the capacitance of the terminal, adjusts the terminal impedance, and performs matching settings according to the internal resistance of the connected signal source.

[0052] It can be understood that when at least two high-speed terminal groups 100 are arranged side by side, two adjacent grounding terminals 101 can be combined into one grounding terminal 101 .

[0053] Embodiment 4

[0054] On the basis of the first embodiment, a break is provided on each speed differential terminal, and the break is connected by a second capacitor 103 .

[0055] The second capacitor 103 and the high-speed differential terminal 102 are both conductors and have a conducting function. If the second capacitor 103 is set on the high-speed differential terminal 102, it is equivalent to connecting the high-speed differential terminal 102 and the second capacitor 103 in parallel, which cannot well guarantee the flow direction of the signal or current. Setting a break on the high-speed differential terminal 102 and connecting the two ends of the break by the second capacitor 103 ensures that the signal or current must flow through the second capacitor 103, further ensuring the formation of impedance matching.

[0056] Embodiment 5

[0057] like Figure 3 As shown, this embodiment provides an electrical connector 300 , including the high-speed terminal set 100 of the first embodiment and the terminal module 200 of the third embodiment.

[0058] It can effectively prevent the electromagnetic interference generated by the connected device from affecting the power line, and also prevent the interference generated by the power line from affecting the connected device. It can enhance the stability of power output, especially in no-load conditions, to ensure stable power output.

[0059] The remaining beneficial effects of the electrical connector 300 are consistent with the beneficial effects of the terminal module 200 and are not elaborated here.

[0060] Embodiment 6

[0061] like Figure 4 and Figure 5 As shown, based on the fifth embodiment, it also includes an insulating body 301 and an injection molded part 302;

[0062] The high-speed terminal assembly 100 and the terminal module 200 are disposed on the insulating body 301 through the injection molding part 302 .

[0063] The high-speed terminal group 100 and the terminal module 200 are fixed on the injection molded part 302, and the injection molded part 302 provides support and fixation for the high-speed terminal group 100 and the terminal module 200. The injection molded part 302 and the high-speed terminal group 100 and the terminal module 200 fixed on the injection molded part 302 are arranged on the insulating body 301, which facilitates the movement and operation of the electrical connector 300 as a whole.

[0064] In one embodiment, the electrical connector 300 further comprises a blister colloid, and the injection molded part 302 is provided with a structure to accommodate the RC circuit 203;

[0065] The blister colloid is filled into the containing groove through secondary injection molding.

[0066] The molded part 302 is provided with a receiving groove, and the molded part 302 is made of an insulating material. The receiving groove is used to place the RC circuit 203 to avoid blocking the RC circuit 203. In some embodiments where the second capacitor 103 is provided, the receiving groove is also used to place the second capacitor 103 to avoid blocking the second capacitor 103.

[0067] After the injection molded part 302 is placed into the insulating body 301, the gap of the receiving groove is filled with the blister colloid to wrap the RC circuit 203 and the first circuit, thereby protecting the RC circuit 203 and the second capacitor 103 and preventing the RC circuit 203 and the second capacitor 103 from being damaged by external forces.

[0068] In one embodiment, if the high-speed terminal assembly 100 and the terminal module 200 are arranged in multiple rows, a plastic spacer 304 may be arranged between two adjacent rows to maintain a distance between the two adjacent rows.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A terminal module, characterized in that: The high-speed terminal group includes at least one high-speed terminal group and a power terminal corresponding to each of the terminal groups, wherein the high-speed terminal group includes two ground terminals and a pair of high-speed differential terminals arranged between the two ground terminals; The power terminal is connected to one of the ground terminals via an FPC board, and an RC circuit is arranged on the FPC board.

2. The terminal module according to claim 1, characterized in that: The RC circuit includes a first capacitor and a first resistor, and the first capacitor and the first resistor are connected in series.

3. The terminal module according to claim 1, characterized in that: The power terminal is disposed at one side of the high-speed terminal group, and the power terminal is connected to the adjacent ground terminal in the corresponding terminal group through an FPC board.

4. The terminal module according to claim 1, characterized in that: A second capacitor is disposed on each of the high-speed differential terminals.

5. The terminal module according to claim 4, characterized in that: A break is provided on each of the speed differential terminals, and the break is connected by the second capacitor.

6. An electrical connector, characterized in that: It comprises at least one group of terminal modules as claimed in claim 1 and at least one group of high-speed terminal groups.

7. The electrical connector according to claim 6, wherein: Also included are insulating bodies and injection molded parts; The high-speed terminal group and the terminal module are arranged on the insulating body through the injection molded part.

8. The electrical connector according to claim 7, wherein: The electrical connector also includes a blister colloid; The injection molded part is provided with a receiving groove to receive the RC circuit; The plastic blister colloid is filled into the containing groove through secondary injection molding.

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