CN218099350U

CN218099350U - Digital display voltmeter

Info

Publication number: CN218099350U
Application number: CN202221698689.6U
Authority: CN
Inventors: 严旦; 陈建; 张妍; 陈奕好
Original assignee: Yueqing Aob Electric Co ltd
Current assignee: Yueqing Aob Electric Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-20
Anticipated expiration: 2032-06-30

Abstract

The utility model provides a digital display voltmeter, including shell and the voltmeter body of installation in the shell, the driving piece is installed at shell cavity top, the shell both sides all are provided with heat exchange member and flabellum. The utility model discloses a driving piece can drive heat transfer spare, and the flabellum rotates in step, heat transfer spare can be traded out the heat that produces when the voltmeter body moves, can realize being the cooling treatment to the shell inside through heat transfer spare heat dissipation, and then realize being the heat dissipation treatment to the voltmeter body, can blow in the shell when the flabellum is rotatory, air flow in the shell accelerates, further realize being the heat dissipation treatment to the voltmeter body, because voltmeter body department is in the confined shell, can prevent effectively that the dust from entering into to be attached to voltmeter body surface in the shell, this voltmeter body is not only radiating effect good, and can not introduce the dust in the shell when the heat dissipation, can be dustproof treatment effectively to the voltmeter body, thereby the practicality is stronger.

Description

Digital display voltmeter

Technical Field

The utility model relates to a voltmeter technical field especially relates to a digital display voltmeter.

Background

A voltmeter is an instrument for measuring voltage. Is composed of permanent magnets, coils, etc. The voltmeter is a fairly large resistor, ideally considered an open circuit.

The prior art has the following defects: prior art's voltmeter is mostly through offering the heat transfer mouth on the shell that its outside cover was established and dispel the heat to the voltmeter, can be to the inside a large amount of dusts that introduce of shell when dispelling the heat through the heat transfer mouth to lead to the dustproof effect of voltmeter to become relatively poor, the dust enters into a large amount of attached to voltmeter surfaces in the shell, not only can influence the heat dissipation of voltmeter, and can increase the risk of voltmeter moisture absorption short circuit.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a digital display voltmeter.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: a digital display voltmeter comprises a shell and a voltmeter body arranged in the shell, wherein a driving part is arranged at the top of an inner cavity of the shell, heat exchange parts and fan blades are arranged on two sides of the shell, and transmission mechanisms are arranged on two sides of the inner cavity of the shell; the driving piece drives the heat exchange piece to rotate and dissipate heat through the transmission mechanism, and drives the fan blades to rotate to accelerate the air flow in the shell.

Preferably, the heat exchange member comprises a heat exchange groove arranged in the shell in a penetrating manner and heat exchange fins connected to the surface of the heat exchange groove and distributed in an annular array manner.

Preferably, the heat transfer groove both sides set up in the shell respectively and outside the shell, just the heat transfer groove is one end open type setting, the heat exchanger fin sets up in the shell outside, the flabellum is connected respectively at the heat transfer inslot side.

Preferably, the transmission mechanism comprises a driving gear connected to the outside of the output shaft of the driving member and a gear ring connected to the outside of the heat exchange groove, and the gear is meshed with the gear ring.

Preferably, the driving member is a double-headed motor.

Preferably, both sides of the shell are connected with a protective cover, and a plurality of through holes are formed in the end part of the protective cover.

The utility model has the advantages that:

the utility model discloses a driving piece can drive the heat transfer piece, and the flabellum rotates in step, the heat transfer piece can be traded out the heat that produces when the voltmeter body moves, along with the high-speed rotation of heat transfer piece, can increase the area of contact of heat transfer piece and air, can dispel the heat fast to the heat transfer piece, can realize cooling down the processing to the shell inside through dispelling the heat to the heat transfer piece, and then realize doing the heat dissipation processing to the voltmeter body, can blow in the shell when the flabellum is rotatory, air in the shell flows with higher speed, further realize doing the heat dissipation processing to the voltmeter body, because the heat transfer piece rotates with the shell is sealed to be connected, can make voltmeter body department in the confined shell, can prevent effectively that the dust from getting into to the shell in attached to voltmeter body surface, this voltmeter body is not only the radiating effect good, and can not introduce the dust to the shell when dispelling the heat, can do effective processing to the voltmeter body, thereby the practicality is stronger.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the driving mechanism and the heat exchanging groove of the present invention;

FIG. 3 is a side view of the heat exchange member of the present invention;

fig. 4 is a schematic view of the driving member of the present invention driving the heat exchange member and the fan blade to rotate through the transmission mechanism.

In the figure: 1. a housing; 2. a voltmeter body; 3. a drive member; 4. a heat exchange member; 41. a heat exchange tank; 42. a heat exchanger fin; 5. a transmission mechanism; 51. a drive gear; 52. a ring gear; 6. a fan blade; 7. a shield; 8. a through hole; 9. and a limiting ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

Referring to fig. 1 to 4, the digital voltmeter of the present embodiment includes a housing 1 and a voltmeter body 2 installed in the housing 1, a driving member 3 is installed at the top of an inner cavity of the housing 1, the driving member 3 is a double-head motor, heat exchanging members 4 and fan blades 6 are disposed on two sides of the housing 1, and a transmission mechanism 5 is disposed on two sides of the inner cavity of the housing 1; as shown in fig. 4, the driving member 3 drives the heat exchange member 4 to rotate and dissipate heat through the transmission mechanism 5, and drives the fan blades 6 to rotate and accelerate the air flow in the housing 1;

the driving piece 3 is connected with the voltmeter body 2 in parallel, the voltmeter body 2 is connected with the driving piece 3 to operate when in operation, the driving piece 3 drives the heat exchange piece 4 and the fan blades 6 to rotate synchronously through the transmission mechanism 5 when in operation, as shown in fig. 4, the heat exchange piece 4 can exchange heat generated when the voltmeter body 2 operates, along with the high-speed rotation of the heat exchange piece 4, the contact area between the heat exchange piece 4 and air can be increased, the heat exchange piece 4 can be rapidly radiated, cooling treatment can be carried out on the interior of the shell 1 through heat radiation of the heat exchange piece 4, then the voltmeter body 2 can be subjected to heat radiation treatment, the fan blades 6 can blow air into the shell 1 when in rotation, air flow in the shell 1 is accelerated, heat radiation treatment on the voltmeter body 2 is further realized, the heat exchange piece 4 is connected with the shell 1 in a sealed and rotating mode, the voltmeter body 2 can be located in the sealed shell 1, dust can be effectively prevented from entering the shell 1 and being attached to the surface of the voltmeter body 2, the voltmeter body 2 is good in heat radiation effect, and dust can be effectively treated on the voltmeter body 2 when in heat radiation, and the dust is high in practicability.

Heat transfer spare 4 here is including running through the heat transfer groove 41 that sets up in shell 1, and connect the heat exchanger fin 42 that is the annular array and distributes on heat transfer groove 41 surface, heat transfer groove 41 both sides set up respectively in shell 1, and outside shell 1, and heat transfer groove 41 is one end open type setting, heat exchanger fin 42 sets up in the shell 1 outside, can change the heat that voltmeter body 2 produced in shell 1 to setting up on the heat transfer groove 41 in the shell 1 outside through heat transfer groove 41 that sets up in shell 1, can change the heat to heat exchanger fin 42 through setting up heat transfer groove 41 outside shell 1, thereby accessible heat transfer spare 4 trades the heat that voltmeter body 2 produced in shell 1 out, realize doing the heat dissipation processing to voltmeter body 2 through the mode of heat transfer, all be connected with restriction circle 9 in heat transfer groove 41 both sides, can restrict heat transfer groove 41 through restriction circle 9, because heat transfer groove 41 runs through setting in shell 1, and the surface laminates with shell 1, can realize spacing rotation with shell 1 through restriction circle 9 heat transfer groove 41 and seal connection.

Because flabellum 6 is connected respectively in heat transfer groove 41 inboard, can drive flabellum 6 rotatory when heat transfer groove 41 is rotatory, can blow to the shell 1 in the flabellum 6 is rotatory, and the air flow in the shell 1 is accelerated, further realizes doing the heat dissipation to voltmeter body 2.

The driving mechanism 5 is arranged so that the driving part 3 can drive the heat exchange groove 41 to rotate, the driving mechanism 5 is not specifically limited, the driving part 3 can drive the heat exchange groove 41 to rotate, the driving mechanism 5 can drive the heat exchange groove 41 to rotate, and the scheme adopts the mode that the driving gear 51 drives the gear ring 52 to rotate to drive the heat exchange groove 41 to rotate.

In order to protect and effectively prevent the heat exchange fins 42 from hurting people when rotating, the two sides of the shell 1 are both connected with the protective covers 7, the heat exchange fins 42 are covered by the protective covers 7, the heat exchange fins 42 can be effectively prevented from hurting people when rotating at high speed, in order to enable the heat exchange fins 42 and the heat exchange grooves 41 to be communicated with the outside air, the end parts of the protective covers 7 are provided with a plurality of through holes 8, and the heat exchange fins 42 and the heat exchange grooves 41 can be communicated with the outside air through the through holes 8.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a digital display voltmeter, includes shell (1) and installs voltmeter body (2) in shell (1), its characterized in that: a driving piece (3) is installed at the top of the inner cavity of the shell (1), heat exchange pieces (4) and fan blades (6) are arranged on two sides of the shell (1), and transmission mechanisms (5) are arranged on two sides of the inner cavity of the shell (1); the driving piece (3) drives the heat exchange piece (4) to rotate and dissipate heat through the transmission mechanism (5), and drives the fan blades (6) to rotate to accelerate air flow in the shell (1).

2. A digital voltmeter according to claim 1, wherein: the heat exchange piece (4) comprises a heat exchange groove (41) which is arranged in the shell (1) in a penetrating mode and heat exchange fins (42) which are connected to the surface of the heat exchange groove (41) and distributed in an annular array mode.

3. A digital voltmeter according to claim 2, wherein: heat transfer groove (41) both sides set up in shell (1) respectively and outside shell (1), just heat transfer groove (41) are one end open type and set up, heat exchanger fin (42) set up in the shell (1) outside, flabellum (6) are connected respectively and are inboard in heat transfer groove (41).

4. A digital voltmeter according to claim 2, wherein: the transmission mechanism (5) comprises a driving gear (51) connected to the outer portion of an output shaft of the driving piece (3) and a gear ring (52) connected to the outer portion of the heat exchange groove (41), and the gear is meshed with the gear ring (52).

5. A digital voltmeter according to claim 1, wherein: the driving piece (3) is a double-head motor.

6. A digital voltmeter according to claim 1, wherein: both sides of the shell (1) are connected with a protective cover (7), and a plurality of through holes (8) are formed in the end part of the protective cover (7).