CN2932081Y

CN2932081Y - HID electronic ballast having split structure

Info

Publication number: CN2932081Y
Application number: CNU2006200431342U
Authority: CN
Inventors: 张兆良
Original assignee: SHANGHAI LUCHUANG ELECTRONIC BALLAST CO Ltd
Current assignee: SHANGHAI LUCHUANG ELECTRONIC BALLAST CO Ltd
Priority date: 2006-06-23
Filing date: 2006-06-23
Publication date: 2007-08-08
Anticipated expiration: 2016-06-23

Abstract

The utility model relates to a split-structured HID electronic ballast comprising a large caloricity unit component, a heat-proof unit component, an electrolytic capacitor, and a heat-labile unit component, wherein the unit components are connected through wires, the large caloricity unit component and the heat-proof unit component are fastened inside a first housing (1), and the electrolytic capacitor and the heat-labile unit component are positioned inside a second housing (2). The utility model has the advantages that the heating unit component and the unit component with lower temperature demand are separated while the connecting circuits between the unit components need no change, thereby prolonging the durability of the ballast.

Description

The HID electric ballast that divides body structure

Technical field

The utility model relates to a kind of HID electric ballast, relates in particular to the mechanical arrangement of components and parts in this HID electric ballast.

Background technology

The electric ballast that is used for hundreds of watts of HID lamps now is the novel illumination product that some companies research and development are just in recent years come out.Its total feature is that all components and parts all are contained within the incorporate metal-back.Because of ballast autophage power generally about tens watts, add environment temperature, its heat radiation is a big problem.If operating ambient temperature is lower, also solve than being easier to; If operating ambient temperature is very high, for example ballast is placed on work in the integral type light fixture, in order to dispel the heat, the appearance and size of ballast often will be done very greatly, however, still has some components and parts because of Temperature Influence, reliability reduces greatly, the lost of life, even damage.These components and parts comprise electrolytic capacitor, the integrated circuit that operating temperature is lower, the components and parts that running parameter is subject to influence of temperature change etc.If ballast is worked in the integral type light fixture, the internal temperature of ballast will be above 100 ℃, this shortens the service life of electrolytic capacitor, integrated circuit that operating temperature is lower, components and parts that running parameter is subject to influence of temperature change greatly, the reliability of some components and parts is reduced greatly, cause also shorten greatly the service life of ballast.

Summary of the invention

The utility model technical issues that need to address have provided the HID electric ballast of a kind of minute body structure, are intended to solve the heat dissipation problem of components and parts.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: components and parts that caloric value is big and heat-resisting components and parts, electrolytic capacitor and heat labile components and parts; Be connected by lead between the components and parts; Components and parts that described caloric value is big and heat-resisting components and parts fixed in position are in one first shell, and electrolytic capacitor and heat labile components and parts are placed in one second shell;

Compared with prior art, the beneficial effects of the utility model are: on the basis that does not change the components and parts line connecting relation, with the components and parts of heating with require the lower components and parts of environment temperature separately, prolonged the service life of ballast.

Description of drawings

Fig. 1 is the utility model structural representation;

Among the figure: components and parts that the dress caloric value was big in A represented and heat-resisting components and parts; B represents built-in electrolytic condenser and heat labile components and parts; C represents the HID lamp.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

As seen from Figure 1: the utility model comprises: components and parts that caloric value is big and heat-resisting components and parts, electrolytic capacitor and heat labile components and parts; Be connected by lead between the components and parts; Components and parts that described caloric value is big and heat-resisting components and parts fixed in position are in one first shell 1, and electrolytic capacitor and heat labile components and parts are placed in one second shell 2.

The purpose of this utility model is to allow the electronic devices and components of non-refractory only be operated under the condition near ambient temperature, isolates with the heating components and parts in the machine, thereby prolongs its service life.

Originally components and parts and the parts installed concentratedly in a casing are divided into two parts, the big components and parts of the big heating of power consumption such as power tube, rectifying tube, transformer, inductance coil etc. are placed in the bigger heat radiation good metal shell, and some components and parts less but that can stand high temperature that do not generate heat or generate heat itself are also placed in wherein; In addition electrolytic capacitor, heat labile integrated circuit and components and parts are combined into the another one part, this part can have a less profile, can use the shell of metal or nonmetallic materials.Can make B part good heat exchange be arranged like this with surrounding environment, and with partly the try one's best exchange of rare heat of above-mentioned A, therefore make temperature in the B part near ambient temperature (do not get rid of itself and still can produce some heats).Two parts all are positioned in the incorporate light fixture like this, and the temperature in the B part is starkly lower than the temperature in the A part, and the operating temperature in the B part approaches the environment temperature in the light fixture.This can make the electronic devices and components of non-refractory prolong its service life greatly, and reaches and surpass the index that manufacturer provides.

Claims

1. the HID electric ballast of a branch body structure comprises: components and parts that caloric value is big and heat-resisting components and parts, electrolytic capacitor and heat labile components and parts; Be connected by lead between the components and parts; It is characterized in that: components and parts that described caloric value is big and heat-resisting components and parts fixed in position are in one first shell (1), and electrolytic capacitor and heat labile components and parts are placed in one second shell (2).