CN218826433U

CN218826433U - Compact structure aluminum shell winding resistor

Info

Publication number: CN218826433U
Application number: CN202122540289.4U
Authority: CN
Inventors: 陶勇; 姚易宙
Original assignee: Shanghai Krah Electronics Co ltd
Current assignee: Shanghai Krah Electronics Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2023-04-07
Anticipated expiration: 2031-10-21

Abstract

The utility model relates to a compact structure aluminum hull wire winding resistance, including aluminum alloy housing, location mica sheet, resistance core, insulator and electrode connection terminal, resistance core both ends lead wire and location mica sheet equipment back, location mica sheet both ends card respectively go into aluminum alloy housing inner chamber side wall slot inslot, the lead-out wire and the electrode connection terminal electrical connection of resistance core, the insulator fill in the space between aluminum alloy housing inner chamber and resistance core. Compared with the prior art, the utility model has the advantages of be fit for full-automatic equipment production.

Description

Compact structure aluminum shell winding resistor

Technical Field

The utility model relates to a resistance especially relates to a compact structure aluminum hull wire winding resistance.

Background

The electric equipment with related motor drive can use a frequency converter, a servo and other control modules. During the braking process of the motor, residual energy is generated, and the resistor is used as an energy consumption device to absorb and consume the residual energy.

The energy storage devices are arranged in the electrical equipment system, when the equipment is stopped, the energy in the energy storage devices is prevented from acting in a reverse direction in a system loop, and the resistor is required to consume the energy in the energy storage devices, so that the safety of electronic devices in the system is protected.

The existing resistor has the defects of poor heat dissipation capability, low protectiveness and the like, and meanwhile, the existing resistor structure is not suitable for automatic production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an aluminum hull wire winding resistance with compact structure for overcoming the defects existing in the prior art.

The purpose of the utility model can be realized through the following technical scheme:

according to the utility model discloses an aspect provides a compact structure aluminum hull wire winding resistance, including aluminum alloy shell, location mica sheet, resistance core, insulator and electrode connection terminal, resistance core both ends lead wire and location mica sheet equipment back, location mica sheet both ends block respectively into aluminum alloy shell inner chamber side wall slot inslot, the lead-out wire and the electrode connection terminal electrical connection of resistance core, the insulator fill in the space between aluminum alloy shell inner chamber and resistance core.

According to the preferable technical scheme, the resistor core body comprises a metal lead cap, a bearing alloy wire insulator and an alloy wire, two ends of the bearing alloy wire insulator and the metal lead cap are combined to form a winding framework, the alloy wire is spirally wound along the surface of the winding framework, and the alloy wire is fixed on the surface of the metal lead cap to form the resistor core body.

According to the preferable technical scheme, the electrode wire holder comprises an integrally injection-molded internal thread hexagonal metal column and an insulating electrode holder, and the leading-out wire of the resistor core body is electrically connected with the internal thread hexagonal metal column.

As the preferred technical scheme, the connection between the electrode wire holder and the resistor core body is sealed by silica gel or silica gel plugs.

As a preferable technical scheme, an electrical isolation through hole is added in the middle of the electrode wire holder.

As a preferred technical scheme, the radial direction of the threaded hole of the internal thread hexagonal metal column is consistent with the direction of the resistor fixing and locking hole.

As a preferable technical scheme, the leading-out wire of the resistor core body is connected with the plane of the non-threaded hole of the internal thread hexagonal metal column through welding.

As a preferred technical scheme, an insulating heat-shrinkable sleeve is sleeved on the lead-out wire of the resistor core.

As an optimal technical scheme, an insulating isolation guard plate is arranged between the outgoing line of the resistor core and the side wall of the aluminum alloy shell, and the resistor core is fixed by adopting an insulating positioning support sheet.

As a preferred technical scheme, the electrode wire holder and the aluminum alloy shell are fixed through the hook type bayonet and the positioning column.

Compared with the prior art, the utility model has the advantages of it is following:

1) Compact structure aluminum hull wire winding resistance can have good heat dissipation heat conductivility, has higher mechanical protection nature simultaneously, adopts the casting mode, sets up the mounting hole position according to customer's needs, and various shapes or inclination are made to the mounting plane.

2) The aluminum alloy metal shell resistor has good heat-conducting property, and can be fixed on a radiator or a metal surface to increase the heat-radiating capacity and reduce the temperature of the surface of the resistor.

3) The electrical connection electrode and the fixed locking of the resistor adopt a thread fastening mode, and the simultaneous locking action can be realized; the threaded column insulating electrode holder for electrical connection and the metal shell are allowed to have certain moving gaps in the XYZ three directions, so that the production efficiency and reliability are improved, the production and assembly automation is gradually improved, the dependence on personnel and experience is reduced, and the automatic production of a machine for automatically taking and paying a resistor and automatically locking is realized.

Drawings

FIG. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic structural view of the electrode wire holder of the present invention;

fig. 3 is a schematic structural diagram of the resistor core of the present invention;

fig. 4 is a schematic structural view of another view angle of the resistor core of the present invention;

FIG. 5 is a schematic view of the aluminum alloy shell of the present invention;

FIG. 6 is a schematic view of the assembled product of the present invention;

FIG. 7 is a schematic view of another perspective of the assembled product of the present invention;

1 is an aluminum alloy shell, 2 is a positioning mica sheet, 3 is a metal lead cap, 4 is an insulator for bearing an alloy wire, 5 is an alloy wire, 6 is an insulating heat-shrinkable sleeve, 7 is an insulating positioning support sheet, 8 is an insulating isolation guard plate, 9 is an insulator, 10 is an internal thread hexagonal metal column, 11 is an insulating electrode holder, 12 is silica gel or a silica gel plug

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1-7, a compact structure aluminum hull wire winding resistance, including aluminum alloy casing 1, location mica sheet 2, resistance core, insulator 9 and electrode connection terminal, resistance core both ends lead wire and location mica sheet 2 equipment back, 2 both ends of location mica sheet block respectively into in the side wall slot of aluminum alloy casing 1 inner chamber, the lead-out wire and the electrode connection terminal electrical connection of resistance core, insulator 9 fill in the space between 1 inner chamber of aluminum alloy casing and resistance core.

The resistor core body comprises a metal lead cap 3, a bearing alloy wire insulator 4 and an alloy wire 5, wherein two ends of the bearing alloy wire insulator 4 and the metal lead cap 3 form a winding framework, the alloy wire 5 is spirally wound along the surface of the winding framework, and the alloy wire 5 is fixed on the surface of the metal lead cap 3 to form the resistor core body. The electrode wire holder comprises an integrally injection-molded internal thread hexagonal metal column 10 and an insulating electrode holder 11, and the outgoing line of the resistor core body is electrically connected with the internal thread hexagonal metal column 10. The connection between the electrode wire holder and the resistor core body is sealed by silica gel or a silica gel plug 12.

The utility model discloses the resistor is fit for full-automatic equipment production, and electric connection locking goes on in step with the fixed locking of resistor, adopts the screw locking mode, just can realize synchronous full-automatic locking. The electrical connection port reserved for the resistor adopts a threaded interface, the radial direction of the reserved electrical connection threaded hole is consistent with the radial direction of the resistor fixing locking hole, and full-automatic locking is conveniently achieved at the same time. The resistor is made of cast aluminum alloy shell, and the position of the resistor fixing locking hole can be adjusted according to the situation; the resistor core body adopts a cylindrical winding framework with an external shape, a lead cap is adopted for electrical leading-out connection, two sides of the winding framework are positioned by adopting insulating supports, the edges of the insulating supports are in contact with and fixed on the inner wall of the metal shell, the relative positions of the core body and the inner cavity of the metal shell can be fixed, so that the distance between the resistor core body and the inner edge of the metal shell is ensured, and the insulating supports are made of insulating materials with good temperature resistance and insulating properties, such as mica, electronic ceramics and the like.

In order to increase the creepage distance between the reserved electrical connection metal threaded holes (columns), an electrical isolation through hole is added in the middle of the electrode wire holder.

The radial direction of the threaded hole of the internal thread hexagonal metal column 10 is consistent with the direction of the fixed locking hole of the resistor. The full-automatic locking can be simultaneously carried out by facilitating the electrical connection locking and the resistor fixing locking.

The outgoing line of the resistor core body is connected with the plane of the non-threaded hole of the internal thread hexagonal metal column 10 through welding. The electrical connection between the core body and the internal thread hexagonal metal column is realized.

And an insulating heat-shrinkable sleeve 6 is sleeved on the leading-out wire of the resistor core. An insulation isolation guard plate 8 is arranged between the outgoing line of the resistor core and the side wall of the aluminum alloy shell 1, the outgoing line of the resistor core and the aluminum alloy shell are electrically isolated, and meanwhile, the resistor core is fixed by an insulation positioning support sheet 7. Ensuring that no offset occurs when filling the insulation.

The electrode wire holder and the aluminum alloy shell 1 are fixed through the hook type bayonet and the positioning column. The position of the insulated electrode holder relative to the metal shell is ensured.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a compact structure aluminum hull wire winding resistance, its characterized in that includes aluminum alloy housing (1), location mica sheet (2), resistance core, insulator (9) and electrode connection terminal, resistance core both ends lead wire and location mica sheet (2) equipment back, location mica sheet (2) both ends block respectively into aluminum alloy housing (1) inner chamber side wall ditch inslot, the lead-out wire and the electrode connection terminal electrical connection of resistance core, insulator (9) fill in the space between aluminum alloy housing (1) inner chamber and resistance core.

2. The compact structure aluminum shell winding resistor as claimed in claim 1, wherein the resistor core comprises a metal lead cap (3), an insulator (4) for carrying alloy wire and alloy wire (5), the two ends of the insulator (4) for carrying alloy wire and the metal lead cap (3) are combined to form a winding frame, the alloy wire (5) is spirally wound along the surface of the winding frame, and the alloy wire (5) is fixed on the surface of the metal lead cap (3) to form the resistor core.

3. The compact structure aluminum-clad winding resistor as claimed in claim 1, wherein the electrode wire holder comprises an integrally molded hexagonal metal column (10) and an insulated electrode holder (11), and the lead wire of the resistor core is electrically connected with the hexagonal metal column (10).

4. The compact structure aluminum shell winding resistor as claimed in claim 1, wherein the connection between the electrode wire holder and the resistor core is sealed by silica gel or silica gel plug (12).

5. The compact aluminum-clad wire-wound resistor as claimed in claim 1, wherein an electrically isolating through hole is added in the middle of the electrode terminal base.

6. The compact aluminum-clad winding resistor as recited in claim 3, wherein the radial direction of the threaded hole of said hexagonal metal stud (10) is aligned with the direction of the resistor fixing and locking hole.

7. The compact aluminum-clad winding resistor as claimed in claim 3, wherein the lead wire of the resistor core is connected to the non-threaded hole plane of the hexagonal internally threaded metal post (10) by welding.

8. The compact structure aluminum-clad winding resistor as claimed in claim 1, wherein the lead-out wire of the resistor core is sleeved with an insulating heat-shrinkable sleeve (6).

9. The compact structure aluminum shell winding resistor as claimed in claim 1, wherein an insulating isolation guard plate (8) is arranged between the lead-out wire of the resistor core and the side wall of the aluminum alloy shell (1), and the resistor core is fixed by an insulating positioning support sheet (7).

10. The compact structure aluminum-clad wire-wound resistor as claimed in claim 1, wherein the electrode wire holder is fixed with the aluminum alloy housing (1) through a hook-type bayonet and a positioning column.