CN111594779B

CN111594779B - Explosion-proof tubular lamp

Info

Publication number: CN111594779B
Application number: CN202010558619.XA
Authority: CN
Inventors: 周立勋; 胡家旺; 喻宗富; 董金; 蒋伟薪
Original assignee: Chuangzheng Electric Co ltd
Current assignee: Chuangzheng Electric Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2022-04-01
Anticipated expiration: 2040-06-18
Also published as: CN111594779A

Abstract

The invention provides an explosion-proof tube type lamp, characterized by comprising: the light source assembly is characterized in that at least one end of the light source assembly is provided with an electric connecting seat, and a static contact is arranged on the electric connecting seat; an optical member; a first end portion provided at one end of the optical member; a second end portion disposed at the other end of the optical member opposite to the first end portion, the second end portion and the optical member forming an enclosed space, the light source assembly being disposed in the enclosed space; and an electrical connection member provided in the first end portion and including a connection terminal including a connection portion, a conductive portion, and an electrical connection portion, the connection portion being electrically connected to the electrical connection portion through the conductive portion; the electric connection part comprises a connecting piece, an elastic component and a movable part.

Description

Explosion-proof tubular lamp

Technical Field

The present invention relates to an explosion-proof type lamp.

Background

The explosion-proof tube-type lamp in the prior art has the defects of large volume and heavy weight, both ends of the shell structure are made of aluminum alloy, and the light-transmitting part is a glass tube (the defect is that the tube is heavy and is easy to damage, such as being damaged by foreign object impact), so the tube-type lamp needs to be provided with a protection net, the weight of the tube-type lamp is further increased, and the light distribution effect is influenced.

In addition, the explosion-proof tube-type lamp in the prior art has the defect of difficult maintenance due to the design of the internal structure of the product. And the tubular lamp cannot achieve the effect of uncovering and powering off when being maintained due to structural influence, and can cause electric shock damage.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an explosion-proof tube type lamp with reasonable structural design.

The technical scheme adopted by the embodiment of the invention for solving the problems is as follows: an explosion-proof type lamp, comprising:

the light source assembly extends along a first direction, at least one end of the light source assembly is provided with an electric connecting seat, and a static contact is arranged on the electric connecting seat;

an optical member configured to transmit light generated by the light source assembly;

a first end portion provided at one end of the optical member;

a second end portion disposed at the other end of the optical member opposite to the first end portion, the second end portion and the optical member forming an enclosed space, the light source assembly being disposed in the enclosed space; and

an electrical connection member that is provided in the first end portion and includes a connection terminal including a connection portion, a conductive portion, and an electrical connection portion, the connection portion being electrically connected to the electrical connection portion through the conductive portion;

the electric connection part comprises a connecting piece, an elastic part and a movable part, the connecting piece is connected with the electric conduction part, the connecting piece is provided with a cavity, at least part of the elastic part is arranged in the cavity of the connecting piece, at least part of the movable part is arranged in the cavity, the movable part moves in a limited range, the elastic part is matched with the movable part, and the movable part is provided with a movable contact which is matched with the static contact and is positioned outside the cavity.

The connecting piece provided by the embodiment of the invention is provided with a first limiting part and a second limiting part, wherein the movable part is provided with a convex part which is respectively matched with the first limiting part and the second limiting part so as to limit the movable range of the movable part.

In the embodiment of the invention, the elastic component is abutted against the end face of the movable part, so that the movable contact of the movable part is abutted against the fixed contact.

The first end part of the optical component comprises a first end cover and a first connecting sleeve, a cable sealing sleeve is arranged on the first connecting sleeve, a threaded section is arranged at the end part of the optical component, the first connecting sleeve is in threaded connection with the threaded section, and the first end cover is connected with the first connecting sleeve.

The embodiment of the invention also comprises a first sheath, wherein the first connecting sleeve is provided with a first wall part, the first wall part and the peripheral surface of the optical component form an accommodating space, the accommodating space is sealed by the first sheath, and pouring sealant is arranged in the accommodating space.

In the embodiment of the invention, the inner circumferential surface of the first wall part is provided with threads.

The light source component comprises a lamp tube and a rear cover, wherein the rear cover is arranged on the lamp tube, a fixing hole is formed in the rear cover, and a hole corresponding to the fixing hole is formed in the electric connecting seat.

In the embodiment of the invention, the rear cover is provided with a guide groove, and the inner circumferential surface of the second end part is provided with a convex point matched with the guide groove.

In the embodiment of the invention, the other end of the light source component, which is opposite to the electric connecting seat, is provided with the handle, the handle is provided with the fine tuning bolt in threaded connection with the handle, the second end part comprises the second end cover, and the second end cover is detachably covered on the second end part and pushes against the fine tuning bolt.

The embodiment of the invention also comprises a second sheath, the second end part comprises a second connecting sleeve, the second connecting sleeve is in threaded connection with the optical component, the salient points are arranged on the inner peripheral surface of the second connecting sleeve, the second connecting sleeve is provided with a second wall part, the second wall part and the outer peripheral surface of the optical component form an accommodating space, the accommodating space is sealed by the second sheath, and pouring sealant is arranged in the accommodating space.

Compared with the prior art, the invention has one or more of the following advantages or effects: the structure is simple, and the design is reasonable; under the normal state, under the action of the elastic component, the movable contact extends out for a certain distance relative to the connecting piece under the action of the elastic component, when the light source component is normally installed in the optical component, a static contact of the light source component is abutted against the movable contact, and the light source component pushes the movable part for a certain distance and compresses the elastic component to convert the elastic potential energy; the movable part is pushed by the light source component for a certain distance, and the elastic component is compressed, so that the electric connection between the movable contact and the fixed contact can be ensured, and the connection is more reliable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic sectional view of an explosion-proof type lamp in an embodiment of the present invention.

Fig. 2 is a perspective view of an explosion-proof type lamp in an embodiment of the present invention with a first end cap removed.

Fig. 3 is a partial sectional view of an explosion-proof type lamp in an embodiment of the present invention.

Fig. 4 is an enlarged schematic view at a in fig. 3.

Fig. 5 is an exploded schematic view of a light source assembly.

Fig. 6 is an enlarged schematic view at B in fig. 5.

Fig. 7 is a partial schematic view of an explosion proof type lamp in an embodiment of the invention with the second end cap removed.

Fig. 8 is an enlarged schematic view at C in fig. 1.

Fig. 9 is an exploded schematic view of an explosion-proof tube type lamp in an embodiment of the invention.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as being limited thereto.

Example 1.

Referring to fig. 1 to 9, the explosion-proof tube type lamp of the present embodiment includes a light source assembly 1, an optical member 2, a first end 3, a second end 4, and an electrical connection member 5.

In the present embodiment, the light source assembly 1 extends along a first direction, an electrical connection socket 11 is disposed at least one end of the light source assembly 1, and a stationary contact 111 is disposed on the electrical connection socket 11.

The optical component 2 in this embodiment is configured to allow light generated by the light source module 1 to pass through, and when the light source module 1 is disposed in the optical component 2, the optical component 2 protects the light source module 1, and the light source module 1 is prevented from being damaged due to collision. The optical member 2 in the present embodiment employs a PC pipe, thereby having characteristics of impact resistance and pressure resistance. Specifically, because the explosion-proof product in the explosion-proof product has the characteristics of allowing the product to enter dangerous gas and allowing the explosion caused by sparks generated in electrical connection inside the product, the explosion is only allowed to occur inside the product and is not allowed to spread to the outside of the product, and the explosion-proof performance of the product shell is not allowed to fail, the PC pipe, the first end part 3 and the second end part 4 are respectively fixed in a threaded manner and are sealed by glue filling, and the glue and the PC pipe are respectively combined with the first end part 3 and the second end part 4 in a threaded manner so as to achieve axial and transverse stability.

A first end portion 3 in the present embodiment, which is provided at one end of the optical member 2.

The second end portion 4 in this embodiment is disposed at the other end of the optical member 2 opposite to the first end portion 3, the second end portion 4 and the optical member 2 form a closed space, and the light source assembly 1 is disposed in the closed space, so that the tube-type lamp has an explosion-proof performance.

The electrical connection member 5 in this embodiment is disposed in the first end portion 3 and includes a connection terminal 30, the connection terminal 30 includes a connection portion 31, a conductive portion 32 and an electrical connection portion 33, the connection portion 31 is electrically connected to the electrical connection portion 33 through the conductive portion 32, and the connection portion 31 is used for connecting to an external cable or cable to provide power.

The electrical connection portion 33 of this embodiment includes a connection member 331, an elastic member 332, and a movable portion 333, wherein the connection member 331 is connected to the conductive portion 32, the connection member 331 has a cavity 3311, the elastic member 332 is at least partially disposed in the cavity 3311 of the connection member 331, the movable portion 333 is at least partially disposed in the cavity 3311, the movable portion 333 is movable within a limited range (ensuring that the movable portion 333 is not separated from the connection member 331), the elastic member 332 is matched with the movable portion 333, and the movable portion 333 has a movable contact 3331 that is matched with the stationary contact 111 and is located outside the cavity 3311. In this embodiment, in a normal state, under the action of the elastic component 332, the movable contact 3331 extends a certain distance relative to the connecting component 331 under the action of the elastic component 332, when the light source assembly 1 is normally installed in the optical component 2, the fixed contact 111 of the light source assembly 1 abuts against the movable contact 3331, and the light source assembly 1 pushes the movable portion 333 for a certain distance and compresses the elastic component 332 to convert into elastic potential energy. The movable part 333 is pushed by the light source assembly 1 for a certain distance, and the elastic member 332 is compressed, so that the movable contact 3331 and the fixed contact 111 are electrically connected, and the connection is more reliable.

In this embodiment, the connecting member 331 has a first position-limiting portion 3312 and a second position-limiting portion 3313, the movable portion 333 is provided with a convex portion 3332, and the convex portion 3332 is respectively matched with the first position-limiting portion 3312 and the second position-limiting portion 3313 to limit the movable range of the movable portion 333 and prevent the movable portion 333 from coming out of the cavity 3311 of the connecting member 331. In this embodiment, the movable portion 333 is a column-shaped structure, and the convex portion 3332 is disposed on the outer peripheral surface of the movable portion 333. And the inner circumferential surface of at least a portion of the chamber 3311 is matched with the outer circumferential surface of the movable part 333 to prevent the movable part 333 from shaking during movement.

In this embodiment, the elastic member 332 abuts against an end surface of the movable portion 333, so that the movable contact 3331 of the movable portion 333 abuts against the fixed contact 111. In normal installation, the elastic member 332 applies force to the movable part 333 to provide pressure of the movable contact 3331 against the stationary contact 111. In this embodiment, the elastic member 332 may be a spring. The connecting member 331 is provided with a hole in which the spring is at least partially mounted.

The first end portion 3 of the present embodiment includes a first end cap 34 and a first connection sleeve 35, the first connection sleeve 35 has a cable sealing sleeve 351 thereon, the cable sealing sleeve 351 is used for cable penetration, the end portion of the optical member 2 is provided with a threaded section 21, the first connection sleeve 35 is in threaded connection with the threaded section 21, and the first end cap 34 is connected with the first connection sleeve 35. In this embodiment, the first end portion 34 has a threaded section, so as to be in threaded connection with the first connecting sleeve 35, and a sealing ring is disposed at the threaded connection to improve the explosion-proof performance.

The embodiment further includes the first sheath 36, the first connecting sleeve 35 has a first wall portion 352, the first wall portion 352 and the outer peripheral surface of the optical component 2 form an accommodating space, the accommodating space is sealed by the first sheath 36, and the potting compound 37 is disposed in the accommodating space. The potting compound 37 improves the sealing between the first connecting sleeve 35 and the optical component 2, thereby improving the explosion-proof performance.

The first wall portion 352 of this embodiment is threaded on its inner circumferential surface. So as to enhance the bonding strength between the potting compound and the first wall portion 352. Moreover, the potting compound 37 is combined with the thread section 21 of the optical member 2 to enhance the combination strength.

In this embodiment, the light source assembly 1 includes a lamp tube 12 and a rear cover 13, the rear cover 13 is disposed on the lamp tube 12, specifically, the rear cover 13 is disposed at the rear side of the light emitting direction of the lamp tube 12, a fixing hole 131 is disposed on the rear cover 13, and a hole 112 corresponding to the fixing hole 131 is disposed on the electrical connection socket 11. The rear cover can be connected to the electrical connector 11 by screwing the bolt through the hole 112 and into the fixing hole 131. The lamp 12 in this embodiment may be a T8 lamp, and the lamp 12 has a light-transmitting tube, a lamp cap, a lamp panel, a light source, and the like, which are the prior art and are not described in detail herein.

The electrical connector 11 in this embodiment may include a socket 1101 and an external portion 1102, wherein the conductive pins of the lamp 12 are fixed to the socket 1101 (prior art), the socket 1101 is electrically connected to the external portion 1102, and the stationary contact 111 is disposed on the external portion 1102. The other end of the lamp 12 is also provided with a lamp holder, and the conductive pin at the other end of the lamp 12 is also fixed with the lamp holder.

In this embodiment, the rear cover 13 is provided with a guide groove 132, and the inner circumferential surface of the second end portion 4 is provided with a protruding point 401 matched with the guide groove 132. When the light source module 1 is inserted into the optical member 2 from the second end 4, the guide groove 132 and the protruding point 401 cooperate to ensure the installation direction, and ensure that the fixed contact 111 and the movable contact 3331 can be aligned to realize connection.

In this embodiment, the other end of the light source assembly 1, which is opposite to the electrical connection socket 11, is provided with a handle 101, the handle 101 is provided with a fine adjustment bolt 102 which is in threaded connection with the handle 101, the second end portion 4 includes a second end cover 41, and the second end cover 41 is detachably covered and disposed on the second end portion 4 and pushes against the fine adjustment bolt 102. In this embodiment, the fine tuning bolt 102 is connected to the handle 101 through a screw thread, so that the length of the portion of the fine tuning bolt 102 exposed outside the handle 101 can be adjusted, and when the second end cap 41 is mounted to the second end portion 4, the fine tuning bolt 102 can be pushed against, so as to push against the light source assembly 1, and the stationary contact 111 of the light source assembly 1 is ensured to be pushed against the movable contact 3331. In this embodiment, after the elastic member 332 is compressed, when the second end cap 41 is opened, the elastic member 332 may spring the light source assembly 1 to separate the movable contact 3331 from the stationary contact 111, thereby performing the power-off function.

The embodiment further includes a second sheath 42, the second end portion 4 includes a second connection sleeve 43, the second connection sleeve 43 is in threaded connection with the optical component 2, the protruding point 401 is disposed on an inner peripheral surface of the second connection sleeve 43, the second connection sleeve 43 has a second wall portion 431, the second wall portion 431 and the outer peripheral surface of the optical component 2 form an accommodation space, the accommodation space is sealed by the second sheath 42, and a potting adhesive 44 is disposed in the accommodation space. The above structure is basically the same as that of the first end cap 3, and will not be described herein.

The wiring portion 31 in this embodiment is a post type wiring terminal, which is a prior art and is not described herein.

The optical member 2 in this embodiment may be externally provided with a protective cover 201, and the protective cover 201 may be helical, and the structure of the protective cover 201 is similar to that of a spring, so as to reduce the influence of the protective cover 201 on the light emission. The protective cover 201 may function to protect the optical member 2.

The first end cap 34 and the second end cap 41 in this embodiment are provided with the

edge lines

3401, 4101. Thus, the

edge lines

3401, 4101 provide greater friction for manual quick removal of the first end cap 34 or the second end cap 41. In this embodiment, the second end cap 41 is provided with an inner hexagonal structure 4102, by which it can be fastened by a tool to ensure the sealing performance of the product.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. An explosion-proof type lamp, comprising:

the light source assembly extends along a first direction, at least one end of the light source assembly is provided with an electric connecting seat, and a static contact is arranged on the electric connecting seat; the electric connecting seat comprises a lamp holder and an external connecting part, a conductive pin on the lamp tube is fixed with the lamp holder, the lamp holder is electrically connected with the external connecting part, and the static contact is arranged on the external connecting part;

an optical member configured to transmit light generated by the light source assembly; the optical component adopts a PC pipe to provide protection for the light source component;

a first end portion provided at one end of the optical member;

the electric connection part comprises a connecting piece, an elastic part and a movable part, the connecting piece is connected with the electric conduction part, the connecting piece is provided with a cavity, at least part of the elastic part is arranged in the cavity of the connecting piece, at least part of the movable part is arranged in the cavity, the movable part moves in a limited range, the elastic part is matched with the movable part, and the movable part is provided with a movable contact which is matched with the static contact and is positioned outside the cavity;

the light source component comprises a lamp tube and a rear cover, the rear cover is arranged on the lamp tube, a fixing hole is formed in the rear cover, and a hole corresponding to the fixing hole is formed in the electric connecting seat;

the rear cover is provided with a guide groove, and the inner circumferential surface of the second end part is provided with a convex point matched with the guide groove;

the other end of the electric connection seat opposite to the light source assembly is provided with a handle, the handle is provided with a fine adjustment bolt in threaded connection with the handle, the second end comprises a second end cover, and the second end cover is detachably covered and arranged on the second end and pushes against the fine adjustment bolt.

2. The explosion proof tube type lamp according to claim 1, wherein: the connecting piece is provided with a first limiting part and a second limiting part, the movable part is provided with a convex part, and the convex part is respectively matched with the first limiting part and the second limiting part so as to limit the movable range of the movable part.

3. The explosion proof tube type lamp according to claim 1, wherein: the elastic component is abutted against the end face of the movable part, so that the movable contact of the movable part is abutted against the fixed contact.

4. The explosion proof tube type lamp according to claim 1, wherein: the first end part comprises a first end cover and a first connecting sleeve, a cable sealing sleeve is arranged on the first connecting sleeve, a threaded section is arranged at the end part of the optical component, the first connecting sleeve is in threaded connection with the threaded section, and the first end cover is connected with the first connecting sleeve.

5. The explosion proof tube type lamp according to claim 4, wherein: the optical component is characterized by further comprising a first sheath, the first connecting sleeve is provided with a first wall portion, an accommodating space is formed between the first wall portion and the outer peripheral surface of the optical component, the accommodating space is sealed by the first sheath, and pouring sealant is arranged in the accommodating space.

6. The explosion proof tube type lamp according to claim 5, wherein: the inner peripheral surface of the first wall portion is provided with a screw thread.

7. The explosion proof tube type lamp according to claim 1, wherein: the optical component is in threaded connection with the optical component, the salient points are arranged on the inner peripheral surface of the second connecting sleeve, the second connecting sleeve is provided with a second wall portion, the second wall portion and the outer peripheral surface of the optical component form an accommodating space, the accommodating space is closed by the second sheath, and pouring glue is arranged in the accommodating space.