CN210390814U

CN210390814U - Control switch for charging gun

Info

Publication number: CN210390814U
Application number: CN201920587699.4U
Authority: CN
Inventors: 王超; 王紫剑
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-04-24
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a control switch for rifle charges, including switch body and resistance, resistance is located the inside of switch body, and with switch body electrical property meets. Because the resistor of the control switch for the charging gun is arranged in the switch body, compared with the existing control switch with the resistor and the switch body arranged in a split manner, the waterproof performance of the connecting position of the resistor and the switch body is greatly improved, the looseness of the connecting position caused by external force can be effectively prevented, and the use requirements of users are met.

Description

Control switch for charging gun

Technical Field

The utility model relates to a new energy vehicle battery charging outfit technical field especially relates to a control switch for rifle charges.

Background

Present new energy automobile is with rifle that charges (being vehicle coupling device), its rifle body internal control switch's body and resistance are split type setting, and the centre is through cable welded connection, because the body of switch does not possess initiative safety defense performance alone, need pass through the circuit welding combination with multiple components and parts and form, and waterproof nature difference has very big potential safety hazard, hardly installs, use easily not hard up leak for a long time and cause badly to the rifle product that charges, cause the burnout to the vehicle, cause the electric shock injures and deaths to the personnel. There is currently no effective solution.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the invention aims to provide a control switch for a charging gun, which can effectively solve the problems that the existing resistor and switch body are poor in waterproof performance of a connecting position and easy to loosen due to split arrangement.

In order to achieve the above object, the present invention adopts the following technical solutions:

the utility model provides a rifle that charges uses control switch, includes switch body and resistance, the resistance is located the inside of switch body, and with switch body electrical property meets.

Further, the switch body includes a switching mechanism and a guard.

Preferably, the resistor is arranged in the protection part; and two ends of the resistor are respectively and electrically connected with the switching mechanism.

Preferably, the switching mechanism includes a conduction device and a conductive member; the guard includes a base; the resistor is arranged in the base; one end of the resistor is electrically connected with the conduction device, and the other end of the resistor is electrically connected with the conductive piece.

Preferably, the conductive member is a cable or a pin.

Preferably, the conducting device comprises a triggering device and a conducting module; one end of the resistor is electrically connected with the trigger device through the conduction module.

Preferably, the number of the conduction modules is not less than 2.

Furthermore, the inner area of the switch body is partially or completely filled with waterproof sealant.

Further, the resistor is a plug-in resistor or a chip resistor.

Further, the resistance value of the resistor ranges from 0.1K omega to 100K omega.

Preferably, the resistance value of the resistor ranges from 0.3 to 5.5K Ω.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses a control switch for rifle charges because its resistance setting is in the inside of switch body, for the control switch that current resistance and switch body components of a whole that can function independently set up, not only improved the waterproof performance of the junction of resistance and switch body widely, can effectively prevent moreover to lead to the junction not hard up because of external force, satisfied user's user demand. Meanwhile, the production cost of the control switch for the charging gun is obviously reduced.

2. The waterproof sealant is partially or completely filled in the inner area of the switch body, so that the waterproof performance of the connection position of the resistor and the switch body can be further improved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the control switch for the charging gun of the present invention.

Wherein the reference symbols are: 11. a switch body; 12. a base; 13. a conducting device; 14. a housing; 15. a trigger device; 16. a conducting module; 17. a conductive member; 18. waterproof sealant; 19. a resistance;

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:

as shown in fig. 1, the utility model discloses a control switch for rifle charges, including switch body 11 and resistance 19, resistance 19 is located switch body 11's inside, and with switch body 11 electrical property meets.

The utility model discloses a control switch for rifle charges because its resistance 19 sets up in switch body 11's inside, for the control switch that current resistance 19 and switch body 11 components of a whole that can function independently set up, not only improved the waterproof performance of resistance 19 and switch body 11's hookup location widely, can prevent effectively moreover that it is not hard up to lead to the hookup location because of external force, has satisfied user's user demand. Meanwhile, the production cost of the control switch for the charging gun is obviously reduced.

Specifically, the switch body 11 includes a switching mechanism and a guard. The resistor is arranged in the protection part; and two ends of the resistor are respectively and electrically connected with the switching mechanism. As a further improvement of the present embodiment, the switching mechanism includes a conduction device 13 and a conductive member 17; the guard includes a base 12; the resistor 19 is arranged in the base 12; one end of the resistor 19 is electrically connected to the conducting device 13, and the other end is electrically connected to the conductive member 17.

The inventor knows the influence of the switch with the external resistor and the waterproof performance of the product caused by the resistor arranged inside the switch, and uses the elements with the same specification, the same test conditions and the same test equipment to test the influence of the waterproof performance of the switch with the built-in resistor and the built-out resistor. The results of the experiment are shown in table 1.

Table 1: testing effect of resistor built in switch body and waterproof performance of resistor arranged outside switch body

Wherein the IP (protective level system) is drafted by IEC (International electrotechnical Commission), and the electric appliances are classified according to their dust and moisture resistance. The IP protection grade is composed of two numbers, wherein the 1 st number represents the grade of dust prevention and foreign object intrusion prevention of the electric appliance (wherein, the foreign object comprises a tool, and the fingers of a person can not contact with the charged part in the electric appliance to avoid electric shock), the 2 nd number represents the airtight degree of moisture prevention and water immersion prevention of the electric appliance, and the larger the number is, the higher the protection grade is.

As can be seen from the above table, the waterproof grade of the resistor placed inside the switch body is obviously superior to that of a structure in which the resistor is placed outside the switch body, and the waterproof sealing performance is superior. The waterproof level of the resistor arranged inside the switch can reach above IP 65.

As a preference of this embodiment, the number of the resistors 19 is 2. For those skilled in the art, the user can set the specific number of the resistors 19 according to the actual use requirement, and should not be limited to the 2 resistors described in the embodiment. The resistor 19 is a plug-in resistor or a chip resistor; the resistance range of the resistor 19 is between 0.1 and 100K omega, so that the resistor precision meets the measurement requirement of technicians on high precision and large range, the detection range is greatly enlarged, and the practicability of the application scene of the equipment is improved.

In this embodiment, in order to demonstrate the influence of the resistance value change on the overall performance of the switch, a switch body and a lead wire with the same specification and material are used, a sample is made of resistors with different resistance values, a series of temperature rise and voltage fluctuation tests are performed, and the experimental results are shown in table 2.

Table 2: temperature rise and voltage fluctuation test effect of different resistance values

It can be seen from the above table that, when the resistance is less than 0.3K Ω, the voltage fluctuation ratio is 3%, because the resistance cannot buffer the voltage fluctuation impact due to too low resistance, and when the resistance is 0.3-5.5K Ω, the voltage fluctuation value is approximately stable. Further from the temperature rise angle, the change of temperature rise is nearly steady when the resistance value is 0.1-5.5K omega, and the voltage fluctuation of the product and the temperature rise performance and the electrical performance in the switch are reduced more along with the continuous increasing of the resistance value. The overall performance and the service life of the switch are greatly influenced, and the service life of the switch is suddenly reduced even the switch fails to work, so that the resistance value of the resistor is selected to be 0.1-100K omega. The comprehensive effect of temperature rise and voltage fluctuation is considered, wherein the optimal range of the resistance value is 0.3-5.5K omega. Therefore, in order to further improve the safety reliability and the practicability of the control switch, the resistance value of the resistor 19 is preferably in the range of 0.3-5.5K Ω in this embodiment.

The conductive member 17 is a cable or a pin or other metal conducting mechanism capable of communicating with an external power/signal.

The conducting device 13 comprises a shell 14, a trigger device 15 arranged outside the shell 14 and a conducting module 16 arranged in the shell 14; one end of the resistor 19 is electrically connected to the trigger device 15 through the conducting module 16. In order to simplify the structure of the triggering device 15 and save production costs, said triggering device 15 is preferably a push button.

And, the number of the conduction modules 16 is not less than 2. In the present embodiment, it is preferable that the number of the conducting modules 16 is 2 or 3, because the number of the conducting modules 16 is preferably 3 for the control switch having the switching function of both the normally-open mode and the normally-closed mode, and the number of the conducting modules 16 is preferably 2 for the control switch having only the normally-closed mode.

In order to further improve the waterproof performance of the connection position of the resistor 19 and the switch body 11, the inner area of the switch body 11 is partially or completely filled with a waterproof sealant 18.

In this embodiment, the inventor knows the influence of the switch with the external resistor and the weight of the product caused by the resistor placed inside the switch, and uses the same specification of elements, the same test conditions and the same test equipment to test the influence of the weight of the resistor placed inside the switch and the weight of the resistor placed outside the switch. The results of the experiment are shown in table 3.

Table 3: test effect of weight of product with resistor built in switch and resistor placed outside switch

As can be seen from the table above, the weight of the resistor embedded in the switch is obviously superior to that of the resistor arranged outside the switch, and the weight reduction effect reaches 75%, so that the resistor has obvious effect on light weight and low cost improvement of an assembly product.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a control switch for rifle charges, includes switch body and resistance, its characterized in that: the resistor is arranged inside the switch body and is electrically connected with the switch body; the interior region of the switch body is partially or completely filled with waterproof sealant.

2. The control switch for a charging gun according to claim 1, characterized in that: the switch body includes a switching mechanism and a guard.

3. The control switch for the charging gun according to claim 2, characterized in that: the resistor is arranged in the protection part; and two ends of the resistor are respectively and electrically connected with the switching mechanism.

4. The control switch for the charging gun according to claim 2, characterized in that: the switching mechanism comprises a conduction device and a conductive piece; the guard includes a base; the resistor is arranged in the base; one end of the resistor is electrically connected with the conduction device, and the other end of the resistor is electrically connected with the conductive piece.

5. The control switch for a charging gun according to claim 4, characterized in that: the conductive piece is a cable or a pin.

6. The control switch for a charging gun according to claim 4, characterized in that: the conduction device comprises a trigger device and a conduction module; one end of the resistor is electrically connected with the trigger device through the conduction module.

7. The control switch for a charging gun according to claim 6, characterized in that: the number of the conduction modules is not less than 2.

8. The control switch for the charging gun according to any one of claims 1 to 7, characterized in that: the resistor is a plug-in resistor or a chip resistor.

9. The control switch for the charging gun according to any one of claims 1 to 7, characterized in that: the resistance value range of the resistor is between 0.1 and 100K omega.

10. The control switch for a charging gun according to claim 9, characterized in that: the resistance range of the resistor is between 0.3 and 5.5K omega.