CN209912633U

CN209912633U - Power resistor module with insulating lead wire type and two-in-one fixed voltage division ratio structure

Info

Publication number: CN209912633U
Application number: CN201920884934.4U
Authority: CN
Inventors: 魏庄子; 仉增维; 艾小军; 王一丁
Original assignee: Shenzhen Yijie Ebg Electronics Co Ltd
Current assignee: GUANGDONG YIJIE TECHNOLOGY Co.,Ltd.
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-01-07
Anticipated expiration: 2029-06-13

Abstract

The utility model provides a take insulating lead type, two unification fixed partial pressure ratio structure power resistance module, its characterized in that, this resistor is including casing and resistance subassembly, the casing is including last casing and lower casing, it is the same with creepage groove and the two quantity to go up the casing upper surface, creepage groove surrounds the wiring groove, be provided with the terminal on the wiring groove, terminal and wiring groove fixed connection, the terminal includes two different external diameters of internal diameter the same last terminal and lower terminal and the two integrated into one piece, the terminal internal diameter is little than last terminal internal diameter down, only have in the terminal down terminal post and wiring groove contact. The beneficial effects of the utility model reside in that, compare with prior art: the creepage distance can be increased by arranging the creepage groove, so that the power consumption of the resistor is increased, and the use range of the resistor is enlarged. The unique design of terminal can be better fixed wire and casing, prevents that wire and casing from leading to because of accident to break away from, can make the resistor safe and reliable more.

Description

Power resistor module with insulating lead wire type and two-in-one fixed voltage division ratio structure

Technical Field

The utility model belongs to the material manufacturing field, in particular to super power resistor.

Background

At present, thick-film super-high power resistors of over 600W sold in the market have high requirements on the medium area and the heat dissipation effect on a ceramic substrate, and the ceramic substrate is welded with a metal bottom plate for the purposes of installation and heat dissipation. Due to different thermal expansion coefficients of the ceramic substrate and the metal, the metal bottom plate can be seriously deformed in the welding process, and the larger the area of the bottom plate is, the more serious the deformation is. Moreover, the thick film resistor provided in the market is generally single in structure, and a single resistor can only realize the function of a resistor with a single resistance value, so that the resistance value of the resistor cannot be freely selected, and the thick film resistor is not suitable for occasions needing to switch different resistance values.

In patent application No. 201220163455.1, a power resistor module with an insulated lead wire and a two-in-one fixed voltage division ratio structure of a composite bottom plate is disclosed, the resistor comprises a first ceramic plate, a copper sheet, a second ceramic plate, an electrode and a resistance paste layer, the copper sheet is welded and fixed between the first ceramic plate and the second ceramic plate, the electrode and the resistance paste layer are sintered on the first ceramic plate, and the electrode is connected with the resistance paste layer. The utility model provides a compound bottom plate's insulating lead type in area, two unification fixed partial pressure ratio structure power resistance module, with copper sheet welded fastening between first potsherd and second potsherd, utilize vacuum welding to form sandwich shape, carried out effectual compensation to deformation that porcelain base plate and metal produced because of the thermal expansion coefficient of difference when the welding. However, in this utility model, a multi-resistance form of various structures cannot be provided.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a power resistor module with an insulation lead type, two-in-one fixed voltage division ratio structure, which has high heat dissipation efficiency, and is suitable for switching different resistances according to self requirements of a resistor with ultra-high power and a user.

Another object of the utility model is to provide a take insulating lead type, two unification fixed partial pressure ratio structure power resistance module, this resistor simple structure, it is suitable for conveniently, be suitable for extensive popularization.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a take insulating lead type, two unification fixed partial pressure ratio structure power resistance module, this resistor is including casing and resistance assembly, the casing is including last casing and lower casing, it is the same with creepage groove and the two quantity to go up the casing upper surface, creepage groove surrounds the wiring groove, be provided with the terminal on the wiring groove, terminal and wiring groove fixed connection, the terminal includes two different external diameters of internal diameter the same last terminal and lower terminal and the two integrated into one piece, the terminal internal diameter is little than last terminal down, only lower terminal and wiring groove contact in the terminal, be provided with fixed connection's wire in the terminal. The creepage distance can be increased by the arrangement of the creepage groove, so that the power consumption of the resistor is increased, and the use range of the resistor is enlarged. The unique design of the binding post can better fix the lead and the shell, prevent the lead and the shell from being separated due to accidents, and enable the resistor to be safer and more reliable.

Further, the upper casing lower surface is provided with the upper cavity, upper cavity and lower casing adaptation, be provided with shell fragment fixed part, reference column and last screens and a body coupling in the upper cavity, the shell fragment fixed part sets up in upper cavity center department, the shell fragment fixed part is provided with the shell fragment and the two fixed connection, the reference column sets up the department that corresponds in the wiring groove, the wiring groove corresponds the department and is provided with the upper casing and leads to the line hole, the wire passes through the upper casing and leads to the line hole, it sets up surface around the upper cavity to go up the screens. The upper cavity is arranged, so that the volume of the shell is reduced, and the resistor is more convenient to use. The shell fragment can make to be connected inseparabler between last casing and the lower casing with the setting up of last screens, also makes the casing installation convenient simple and easy more. The arrangement of the positioning column can better arrange the wires and play a positioning role in the process of installing the upper shell and the lower shell.

Further, the casing upper surface is provided with down the cavity, the cavity sets up one and strengthens that the bone muscle encloses into the mounting groove and the mounting groove is located the cavity central authorities by "mouth" font down, the mounting groove diagonal position is provided with the constant head tank, constant head tank and reference column looks adaptation, the mounting groove is provided with inferior valve through-hole and supporting shoe, the wire leads to the hole through lessons down, the supporting shoe is located the mounting groove central authorities and the corresponding supporting shoe and mounting groove fixed connection of shell fragment, the casing is provided with down screens and last screens looks adaptation down. The supporting block is matched with the elastic sheet support when the shell is installed, so that a clearance space exists between the lower surface of the upper shell and the upper surface of the lower shell, and the shell can be prevented from being excessively damaged by extrusion to a certain extent. The installation groove is convenient for the wiring of the wires.

Further, the lower surface of the lower shell is provided with a resistor cavity, a resistor assembly and a resistor assembly fixed connection are arranged in the resistor cavity, and the wire is fixedly connected with the resistor assembly.

Further, the resistance assembly comprises a resistor and a resistance bottom plate, the resistance bottom plate comprises an upper layer porcelain substrate, a middle copper plate and a lower layer nickel-plated porcelain substrate, the middle copper plate and the upper layer porcelain substrate are sequentially connected in a stacking and fixing mode, and the resistor is fixedly connected with the resistance bottom plate. The upper-layer ceramic substrate, the middle copper plate and the lower-layer nickel-plated ceramic substrate combined structure has good mechanical strength and hardness, and the flatness of the whole resistance bottom plate can be guaranteed during forming, so that the resistance bottom plate can be prevented from being damaged in subsequent installation and use processes. The utility model provides a resistor is super powerful resistor, and this super powerful resistor can produce a large amount of heats in the use, and is not high if resistor radiating efficiency, then easily leads to the heat gathering and then burns out the resistance. The utility model discloses in, with the centre that middle copper sheet presss from both sides at upper porcelain base plate and lower floor's nickel plating porcelain base plate, the three is fixed with "sandwich" form vacuum welding, can guarantee that whole when the welding carries out effectual compensation because of the deformation that different thermal expansion coefficient produced, has guaranteed the radiating effect of bottom plate fundamentally. The utility model discloses use this "sandwich" form, can make whole resistor be applicable to the super large power occasion.

Furthermore, the resistor is a thick film resistor, and the thick film resistor is printed and sintered on the upper surface of the upper-layer ceramic substrate. The thick film resistor is mainly a resistor printed by a thick film process, and the common thick film resistor is printed and sintered by metal ruthenium resistor paste. The resistor paste contains ruthenium oxide, an organic solvent, and a glass phase. The thick film resistor is applied to the occasions which need high resistance value, small volume, high pulse absorption and the like in industrial occasions, the thick film resistor is printed and sintered on the upper surface of the upper substrate, the resistor base plate provides a printing plane for the thick film resistor, the strength and the hardness of the whole resistor are ensured, and the thick film resistor also ensures the resistance function of the core of the whole resistor due to excellent functional characteristics of the thick film resistor.

Furthermore, a plurality of resistance value combination structure modes are arranged in the resistor, and the resistance values of the resistors in different structure modes are the same and different.

Furthermore, the resistor is provided with pins which are fixedly connected with each other, and the pins comprise a first pin, a second pin, a third pin and a fourth pin. The utility model discloses in the plural kinds of pin integrated configuration mode that provides, the resistance is mutually different between the resistance of the different integrated configuration forms of pin, and its work also mutually noninterference.

Furthermore, the first pin, the second pin, the third pin and the fourth pin are fixedly connected with the conducting wire, the first pin, the second pin, the third pin and the fourth pin are in a plurality of combined structure modes, and resistance values of resistors in different structure modes are the same and different in selection. The utility model discloses in, plural number strip pin one end is equallyd divide do not with resistance specific position fixed connection, and these specific positions correspond the different structure mode of resistance, pass through the wire through the pin of difference or the combination form of different pins with resistance access external circuit in, can insert external circuit with the resistance of different resistances, the user only needs to switch the access mode of different resistance lines, can switch the access resistance of different resistances, need not to change the new resistor.

The beneficial effects of the utility model reside in that, compare with prior art: the creepage distance can be increased by arranging the creepage groove, so that the power consumption of the resistor is increased, and the use range of the resistor is enlarged. The unique design of terminal can be better fixed wire and casing, prevents that wire and casing from leading to because of accident to break away from, can make the resistor safe and reliable more.

Drawings

Fig. 1 is a schematic top view of an upper case of a power resistor module with an insulated lead wire and a two-in-one fixed voltage division ratio structure according to the present invention.

Fig. 2 is a schematic view of the lower surface of the upper case of the power resistor module with the insulation lead wire and the two-in-one fixed voltage division ratio structure of the present invention.

Fig. 3 is a schematic view of the lower surface of the power resistor module with the insulation lead wire and the two-in-one fixed voltage division ratio structure of the present invention.

Fig. 4 is a schematic diagram of the power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure according to the present invention.

Fig. 5 is a schematic diagram of a resistor module with an insulated lead wire and a two-in-one power resistor module with a fixed voltage division ratio structure according to the present invention.

Fig. 6 is a cross-sectional view of the terminal of the power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

the utility model provides a take insulating lead type, two unification fixed partial pressure ratio structure power resistance module, this resistor is including casing and resistance subassembly 1, the casing is including last casing 2 and lower casing 3, it is the same with climbing electric tank 22 and the two quantity to go up the casing upper surface, climbing electric tank 22 surrounds wiring groove 21, be provided with terminal 4 on the wiring groove, terminal 4 and wiring groove 21 fixed connection, terminal 4 includes the same last terminal 41 of the different external diameters of two internal diameters and lower terminal 42 post and the two integrated into one piece, lower terminal 42 is less than last terminal 41 internal diameter, only lower terminal 42 contacts with wiring groove 21 in the terminal 4.

Further, the lower surface of the upper shell 2 is provided with an upper cavity 23, the upper cavity 23 is matched with the lower shell 3, an elastic sheet fixing part 231, a positioning column 232 and an upper clamping part 233 are arranged in the upper cavity 23 and are integrally connected, the elastic sheet fixing part 231 is arranged at the center of the upper cavity 23, the elastic sheet fixing part 231 is provided with an elastic sheet 5 and is fixedly connected with the elastic sheet 5 and the elastic sheet, the positioning column 232 is arranged at the corresponding position of the wiring groove 21, the corresponding position of the wiring groove 21 is provided with an upper shell through wire hole 24, and the upper clamping part 233 is arranged on the peripheral surface of the upper cavity 23.

Further, lower casing 3 upper surface is provided with cavity 31 down, cavity 31 sets up one and strengthens that the muscle of bone encloses into mounting groove 32 and mounting groove 32 by "mouth" font is located cavity 31 central authorities down, mounting groove 32 diagonal department is provided with constant head tank 33, constant head tank 33 and reference column 232 looks adaptation, mounting groove 32 is provided with lower shell thread hole 34 and supporting shoe 35, supporting shoe 35 is located mounting groove 32 central authorities and corresponding and supporting shoe 35 and mounting groove 32 fixed connection with shell fragment 5, casing 3 is provided with down screens (not shown) and screens and last screens 233 looks adaptation down.

Further, a resistor cavity (not shown) is arranged on the lower surface of the lower shell 3, and the resistor assembly 1 is arranged in the resistor cavity and fixedly connected with the resistor cavity.

Further, resistance module 1 includes resistance 11 and resistance bottom plate 12, resistance bottom plate 12 is including upper porcelain base plate 121, middle copper 122 and lower floor's nickel plating porcelain base plate 123, middle copper 122 and upper porcelain base plate 121 stack gradually fixed connection, resistance 11 and resistance bottom plate 12 fixed connection.

Further, the resistor 11 is a thick film resistor printed and sintered on the upper surface of the upper layer ceramic substrate 121.

Furthermore, the resistor 11 is provided with pins and the pins are fixedly connected, and the pins include a first pin 111, a second pin 112, a third pin 113 and a fourth pin 114.

Furthermore, the first pin 111, the second pin 112, the third pin 113, and the fourth pin 114 are all fixedly connected to a wire, the first pin 111, the second pin 112, the third pin 113, and the fourth pin 114 have a plurality of combined structural modes, and resistance values of different structural modes are the same and different.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a take insulating lead type, two unification fixed voltage division ratio structure power resistance module, its characterized in that, this resistor is including casing and resistance subassembly, the casing is including last casing and lower casing, it is the same with creepage groove and the two quantity to go up the casing upper surface, creepage groove surrounds the wiring groove, be provided with the terminal on the wiring groove, terminal and wiring groove fixed connection, the terminal includes two different external diameters of internal diameter the same last terminal and lower terminal and the two integrated into one piece, terminal internal diameter is less than last terminal internal diameter down, only have in the terminal down terminal post and wiring groove contact.

2. The power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure as claimed in claim 1, wherein the lower surface of the upper casing is provided with an upper cavity, the upper cavity is matched with the lower casing, the upper cavity is internally provided with a spring fixing part, a positioning column and an upper clamping part which are integrally connected, the spring fixing part is arranged at the center of the upper cavity, the spring fixing part is provided with a spring and fixedly connected with the spring, the positioning column is arranged at a corresponding position of the wiring groove, the corresponding position of the wiring groove is provided with an upper casing through hole, and the upper clamping part is arranged on the peripheral surface of the upper cavity.

3. The power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure as claimed in claim 2, wherein the lower housing has a lower cavity on the upper surface, the lower cavity has a mounting groove surrounded by a "U" -shaped reinforcing rib and the mounting groove is located in the center of the cavity, the mounting groove has a positioning groove at the diagonal position, the positioning groove is adapted to the positioning column, the mounting groove has a lower through hole and a supporting block, the supporting block is located in the center of the mounting groove corresponding to the spring piece and is fixedly connected to the mounting groove, the lower housing has a lower retaining portion and the lower retaining portion is adapted to the upper retaining portion.

4. The power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure as claimed in claim 1, wherein the lower surface of the lower case is provided with a resistor cavity, and the resistor component is arranged in the resistor cavity and fixedly connected with the resistor cavity.

5. The power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure as claimed in claim 4, wherein the resistor assembly comprises a resistor and a resistor base plate, the resistor base plate comprises an upper ceramic substrate, a middle copper plate and a lower nickel-plated ceramic substrate, the middle copper plate and the upper ceramic substrate are sequentially stacked and fixedly connected, and the resistor is fixedly connected with the resistor base plate.

6. The power resistor module with an insulated lead type and a two-in-one fixed voltage division ratio structure according to claim 5, wherein the resistor is a thick film resistor printed and sintered on the upper surface of the upper ceramic substrate.

7. The power resistor module with insulated lead wire and two-in-one constant voltage division ratio structure as claimed in claim 6, wherein the resistor has a plurality of resistance combination structure modes, and the resistance values of the resistors in different structure modes are selected in the same or different ways.

8. The power resistor module with the insulated lead wire and the two-in-one fixed voltage division ratio structure as claimed in claim 7, wherein the resistor is provided with pins and the pins are fixedly connected with the resistor, and the pins comprise a first pin, a second pin, a third pin and a fourth pin.

9. The power resistor module with the insulated lead type and the two-in-one fixed voltage division ratio structure as claimed in claim 4, wherein the first pin, the second pin, the third pin and the fourth pin are all fixedly connected with a conducting wire, the first pin, the second pin, the third pin and the fourth pin have a plurality of combined structural modes, and the resistance values of different structural modes are the same and different.