KR102505851B1 - Air conditioning golf cart - Google Patents

Abstract

The present invention relates to a cooling and heating type golf cart. The present invention comprises: a cart main body having a door opening and closing a boarding space, driven while a passenger rides on the cart main body, and having a battery as a power source; and a cooling and heating unit having an outdoor unit installed in an upper portion of a roof of the cart main body, having an indoor unit connected to the outdoor unit and disposed inside a boarding space, and controlled by a passenger to control temperature inside the boarding space. According to the present invention, the cooling and heating type golf cart can more efficiently perform air conditioning of an indoor space by having a door and allows external air to be guided to the inside according to necessity to provide comfortable environment.

Description

Air conditioning golf cart}

The present invention relates to a golf cart used in a golf course, and more particularly, to a cooling/heating type golf cart capable of internal cooling and heating, so that it can be conveniently used in hot or cold weather.

Golf carts, as means of transportation used in golf courses, allow players and golf bags to move comfortably and quickly. There are various types of golf carts, and they usually have the form of a vehicle having a loading space and a boarding space. The player loads his/her golf bag in the loading space, sits on a seat in the boarding space, and moves.

However, a general golf cart has a structure in which left and right sides are open. In other words, it is left open without a door. For this reason, even if an air conditioner is installed, cold air is immediately dispersed, making cooling difficult. In the summer season, due to the heat, there was a problem that players easily get tired.

As a background technology of this related invention, Korean Patent Registration No. 10-2165336 (golf cart equipped with an air conditioner) has been disclosed.

The disclosed golf cart includes a compressor for compressing a refrigerant at high temperature and high pressure; A condenser that condenses the refrigerant at medium temperature and high pressure; An evaporator that lowers the temperature by absorbing heat in the expanded refrigerant; It includes a blowing fan for supplying external air to the evaporator and one or more outlets through which cooled air is discharged, the compressor and the condenser are arranged and installed on the back of the golf cart, and the evaporator, the blower fan and the outlet are on the roof of the golf cart. and further includes a control unit for controlling the air conditioner, wherein the control unit has a structure including a power button, a temperature control button, and a display displaying a cold air temperature.

However, since the conventional golf cart described above does not have doors on the left and right sides of the seat, even if the cold air is discharged downward through the discharge port, the cold air flows directly to the outside, so there is virtually no cooling efficiency and energy efficiency is extremely low. have

There is a demand for a golf cart that has a sealed boarding space and efficiently performs air conditioning inside the boarding space, has good energy efficiency, and can be used comfortably in winter as well as in summer.

The present invention has been created to solve the above problems, and has a door to perform air conditioning in the boarding space more efficiently, and provides a comfortable environment by inducing outside air to the inside as needed. It is intended to provide

A cooling/heating type golf cart of the present invention as a means of solving problems for achieving the above object includes a cart body having a door that opens and closes a boarding space, traveling with a passenger on board, and having a battery as a power source; It is configured to include an outdoor unit installed on the roof of the cart body, an indoor unit connected to the outdoor unit and placed in the boarding space, and a cooling/heating unit operated by a passenger to adjust the temperature in the boarding space.

In addition, the indoor unit is fixed to the ceiling surface of the boarding space, has a box shape, and has an intake port for intake air in the boarding space and a discharge port for discharging the temperature-controlled air after intake into the boarding space. and a control unit disposed on a lower surface of the indoor unit casing and operated by an occupant, and a display unit displaying the temperature inside the occupant space.

In addition, another air-conditioning golf cart of the present invention as a means of solving the problems for achieving the above object has a door that opens and closes the boarding space, travels with a passenger on board, has a battery as a power source, and has a roof on the roof. a cart body in which a square roof passage is formed; It is installed on the roof of the cart body, takes the form of a square frame, accommodates the roof passage in the inner area, and has a ventilation frame in which a plurality of ventilation holes are formed, and a support having a ventilation control plate installed in the ventilation opening and adjusting the degree of opening of the ventilation opening. with the base; a unit accommodating housing detachably installed on an upper portion of the support base, opening a roof passage upward, and having a space portion open to the side through an air inlet; In a state of being mounted in the housing for accommodating the unit, a cooling/heating unit providing cold air or warm air into the boarding space through a roof passage is provided.

Further, the air inlet and the roof passage are disconnected in a state where the cooling and heating unit is seated in the housing for accommodating the unit, and inside the housing for accommodating the unit, the air inlet and the roof passage are connected by raising the heating and cooling unit, or The air inlet and the roof passage are disconnected by lowering, and a lifter having lifting brackets supporting both ends of the cooling and heating unit and actuators for lifting each lifting bracket is further installed.

In addition, the cooling and heating unit; A control panel manually operated by a passenger, an infrared receiver for receiving an external radio signal, and a remote control for transmitting a control signal to the infrared receiver are further included.

In addition, a smart terminal is connected to the heating and cooling unit and the battery through a wireless communication network, and outputs a control signal and simultaneously displays the status of the heating and cooling unit and the battery.

The cooling/heating type golf cart of the present invention configured as described above can more efficiently perform air conditioning in the boarding space by having a door, and provides a comfortable environment by guiding outside air into the interior as necessary.

1 is a side view of a cooling/heating type golf cart according to a first embodiment of the present invention.
2 is a view showing the indoor unit shown in FIG. 1;
3 is a side view of a cooling/heating type golf cart according to a second embodiment of the present invention.
Figure 4 is a perspective view of the support base shown in Figure 3;
FIG. 5 is a perspective view of the heating/cooling unit and housing shown in FIG. 3;
6 and 7 are views for explaining a cooling and ventilation method of a golf cart according to a second embodiment of the present invention.

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a side view of a cooling/heating type golf cart 10 according to a first embodiment of the present invention, and FIG. 2 is a view showing an installed state of the indoor unit 16 shown in FIG. 1 .

As shown, the air-conditioning golf cart 10 according to the present embodiment includes a cart body 11, a cooling and heating unit 17, an auxiliary heater 18, a battery 14, and a smart terminal 19. .

The cart body 11 has doors 12 on both sides as a means of transportation used in the golf course. A plurality of seats are provided in the boarding space 11b of the cart body 11, and a driver's seat is naturally located in the front. The cart body 11 is an electric battery-powered vehicle, and travels with passengers on board.

The door 12 opens and closes the boarding space 11b. By installing the door 12, it is possible to block the boarding space 11b from the outside as much as possible during movement.

The auxiliary heater 18 is used for heating the boarding space 11b in winter. The installation position of the auxiliary heater 18 can be changed in various ways. The heating method of the auxiliary heater 18 is various. As auxiliary heaters, for example, PTC heaters can be used.

The heating and cooling unit 17 is a heat pump to which a general refrigeration cycle is applied, and has an outdoor unit 15 and an indoor unit 16. The outdoor unit 15 and the indoor unit 16 are connected through a refrigerant line.

The outdoor unit 15 is mounted on the upper part of the roof of the cart body 11. An appropriate fixing structure (not shown) may be used to fix the outdoor unit 15 . The indoor unit 16 is disposed in the boarding space 11b and outputs cold air or warm air. The indoor unit 16 is manually operated by an occupant. Since the boarding space 11b is blocked from the outside by the door 12, cooling or heating efficiency is good.

The indoor unit casing 16a constituting the indoor unit 16 takes the shape of a box and has an intake port 16b and a discharge port 16c. The intake port 16b is a hole through which air inside the boarding space is sucked. In addition, the discharge port 16c is a hole through which the air entering the intake port 16b is discharged to the outside after being temperature-controlled. The air taken in through the intake port 16b comes in contact with a heat exchanger (not shown) inside the indoor unit, changes its temperature, and then is discharged. The heat exchanger is an evaporator when the heating/cooling unit 17 is used as an air conditioner, and a condenser when used as a warm fan. Since the configuration of the heat pump itself is general, its description will be omitted.

In addition, a display unit 16d and an operation unit 16f are positioned on the bottom surface (the surface facing the boarding space 11b) of the indoor unit casing 16a. The display unit 16d displays the indoor temperature, humidity or carbon dioxide concentration inside the boarding space 11b. When the carbon dioxide concentration increases, the occupant may open the door 12 to ventilate the boarding space.

The operating portion 16f is a plurality of dial-type switches, which are operated by the occupant. The air conditioning unit 40 can be manually controlled through the manipulation unit 16f. For example, the air conditioning unit 40 can be turned on or off, or the temperature inside the boarding space 11b can be adjusted.

The battery 14 is disposed on the lower side of the cart body 11 and is a power source for supplying all power required for the operation of the golf cart 10 . The battery 14 is a battery pack of a type used in general electric vehicles.

The smart terminal 19 is a smart pad mounted inside a golf cart or a smartphone carried by a passenger, and is connected to the heating/cooling unit 40 and the battery 14 through a short-range wireless communication network. For example, it is connected to the heating/cooling unit 40 and the battery 14 through Wi-Fi, Bluetooth, Zigbee, Z-wave, or NFC. The smart terminal 19 not only outputs various control signals, but also makes it possible to grasp the operating conditions of the battery 14 and the heating/cooling unit 40.

In addition to the manual operation through the control panel 41 or the control method using the remote controller 45, the air-conditioning unit 40 can be remotely controlled by applying the IoT technology.

3 is a side view of a cooling/heating type golf cart 10 according to a second embodiment of the present invention, and FIG. 4 is a perspective view of the support base 30 shown in FIG. 3 . 5 is a perspective view of the cooling/heating unit and housing shown in FIG. 3, and FIGS. 6 and 7 are views for explaining a cooling and ventilation method of a golf cart according to a second embodiment of the present invention.

The same reference numerals as the above reference numerals indicate the same members with the same functions.

As shown, the air-conditioning golf cart 10 according to the present embodiment includes a cart body 11, a support base 30, a unit accommodation housing 51, a cooling/heating unit 40, and a lifter 60. do.

As described with reference to FIG. 1, the cart body 11 is a means for moving passengers. In particular, a square roof passage 11e is formed on the roof of the cart body 11. The roof passage 11e is a passage opening the boarding space 11b upward. The roof passage 11e passes the cold air or warm air ejected from the air-conditioning unit 40 downward or, as shown in FIG. 7, guides outside air introduced through the air inlet 51e to the boarding space 11b. It is a passage to The size and location of the roof passage 11e can be changed.

The support base 30 is a square frame that is fixed on the roof 11c of the cart body 11 and accommodates the roof passage 11e in its inner region. In addition, the upper end of the support base 30 is horizontal. For example, a virtual plane raised on the upper end of the support base 30 is horizontal to the ground.

The support base 30 includes a ventilation frame 31 in the form of a square frame and a ventilation amount control plate 33 . The ventilation frame 31 is constructed by erecting a band-shaped member having a certain thickness in the width direction, and has a rectangular planar shape.

In addition, a plurality of ventilation holes 31a open in all directions are formed in the ventilation frame 31 . The ventilation hole 31a is a through hole through which air passes, and has a guide slit 31c like a window frame. The guide slits 31c are formed in parallel in two rows above and below the vent 31a.

The airflow control plate 33 is a rectangular plate-shaped member fitted inside the ventilation hole 31a. The upper and lower ends of the airflow control plate 33 are supported by the guide slit 31c. The air flow control plate 33 is slidable along the longitudinal direction of the guide slit 31c. It moves like opening and closing a window. As the ventilation amount control plate 33 is opened and closed, the open area of the ventilation hole 31a changes. The airflow control panel 33 is manually opened and closed by the occupant.

By applying the ventilation amount control plate 33 as described above, when the air inside the boarding space 11b is turbid, it is possible to introduce outside air into the room by opening the ventilation amount control plate 33 without opening the door 12. . Since the door 12 cannot be opened while the golf cart 10 is moving, the air flow control plate 33 is opened to ventilate the interior. When the ventilation amount control plate 33 is completely closed, outside air does not flow into the boarding space 11b.

After all, the support base 30 serves as a support for supporting the heating/cooling unit 40 and the unit accommodating housing 51 and at the same time serves to introduce outside air into the boarding space 11b.

The unit accommodating housing 51 is detachably installed on the upper part of the support base 30, and the central portion is opened up and down, and air inlets 51e are formed on both sides. A cooling/heating unit 40 is mounted in the central portion of the unit accommodating housing 51.

In addition, a fixed guide protrusion 51c is formed on the bottom surface of the unit accommodating housing 51. The fixed position guide projection 51c is a projection that determines the relative position of the unit accommodating housing 51 with respect to the ventilation frame 31 . By fitting the position guide protrusion 51c to the outside of the upper end of the ventilation frame 31, the unit accommodating housing 51 is properly positioned with respect to the ventilation frame 31.

The air inlet 51e is a hole through which air outside the unit accommodation housing 51 passes. External air flows into the space portion 51a through the air inlet 51e. At this time, as shown in FIG. 7, if the heating and cooling unit 40 is lifted in the direction of arrow a, outside air may flow into the boarding space 11b via the space 51a.

In addition, an insect repellent screen 55 is installed inside the space portion 51a. The insect screen 55 prevents pests such as mosquitoes and flies from entering the space 51a.

Reference numeral 53 denotes an elastic contact plate. The elastic contact plate 53 is a rubber plate fixed to the inside of the upper end of the unit accommodation housing 51, and elastically contacts both sides of the upper end of the heating/cooling unit 40. As shown in FIG. 6 , the elastic contact plate 53 is bent downward in a state in which the end portion adheres to the side surface of the heating and cooling unit 40 in a state where the cooling and heating unit 40 is positioned horizontally.

The elastic contact plate 53 is always in contact with the air conditioning unit 40 . Therefore, even if the heating and cooling unit 40 is tilted in the direction of arrow a, for example, no gap is generated at the side of the heating and cooling unit 40. The size of the elastic contact plate 53 is designed so that it does not diverge from the heating and cooling unit 40 at the maximum tilting angle of the heating and cooling unit 40 (see FIG. 7). The reason for tilting or raising the heating/cooling unit 40 is to provide an inflow path for outside air. That is, this is to allow outside air to be introduced into the boarding space 11b.

In particular, in a situation where the cooling/heating unit is outputting cold air, when the cooling/heating unit is tilted in the direction of arrow a in FIG. , and allows the cold air to reach the inner corner of the boarding space 11b. Even if the output of the air-conditioning unit is not increased, the cooling efficiency is improved. This is based on the same principle as when the air conditioner and fan are operated together, the cold air reaches the corner of the room. In this way, by utilizing the kinetic energy of the introduced air, power consumption of the cooling and heating unit 40 can be minimized and noise can be reduced.

The heating and cooling unit 40 is a packaged heat pump, and its structure and operation method itself is the same as a general heat pump. The air-conditioning unit takes the form of a box, and has a control panel 41 and an infrared receiver 43 on a bottom surface, that is, a surface facing the boarding space 11b. The control panel 41 is a part that a passenger manually operates by raising his/her hand, and has various switches. The occupant turns on/off the heating/cooling unit 40 through the control panel 41 or adjusts the temperature. The infrared receiver 43 is a part that receives a radio signal output from the remote controller 45 . The air conditioning unit 40 can be controlled by the remote control 45.

However, in addition to the manual operation through the control panel 41 or the control method using the remote control 45, it may be controlled through the smart terminal 19. Remote control is possible by applying IoT technology to the heating and cooling unit (40).

As described above, the smart terminal 19 is a smart pad mounted inside a golf cart or a smartphone carried by a passenger, and is connected to the heating/cooling unit 40 and the battery 14 through a short-range wireless communication network. (14) and the cooling/heating unit (40), as well as displaying the driving status. In addition to the manual operation through the control panel 41 or the control method using the remote control 45, it can be remotely controlled by applying IoT technology.

When the air conditioning unit 40 is completely lowered as shown in FIG. 6, the air inlet 51e and the roof passage 11e are blocked. In contrast, when the air conditioning unit 40 is tilted upward as shown in FIG. 7 , the air inlet 51e communicates with the roof passage 11e, so that outside air can flow into the boarding space 11b.

The lifting movement or tilting movement of the cooling/heating unit 40 is performed by the lifter 60. The lifter 60 is connected to the sensor 67 and the lifter driving unit 68. The sensor 67 is a sensor that detects the carbon dioxide concentration inside the boarding space 11b. Information sensed by the sensor 67 is delivered to the receiver 65 in real time. When the carbon dioxide concentration is higher than the set value, the receiver 65 operates the actuator 63 to raise the heating and cooling unit 40 .

The lifter driving unit 68 is a switch panel for manually manipulating the lifter 60 . It is possible to control the lifting height or tilting angle of the cooling/heating unit 40 through the lifter driving unit 68 . In addition, the function of the sensor 67 can be turned on and off.

The lifter 60 raises the cooling and heating unit 40 to communicate the air inlet and the roof passage, or lowers the cooling and heating unit to disconnect the air inlet and the roof passage, and includes a lifting bracket 61, an actuator 63, It has a receiver (65). The lifters 60 are disposed on the front and rear sides of the air conditioning unit 40, respectively. Front means a forward direction of the golf cart 10, and rear means a backward direction of the golf cart 10.

The lifting bracket 61 is a member supporting the front and rear ends of the heating and cooling unit 40 . The heating and cooling unit 40 can be lifted through the lifting bracket 61. The structure of the lifting bracket 61 can be changed in various ways.

The actuator 63 is an electric actuator, and the lower end is connected to the bottom surface of the unit accommodating housing 51 with a connecting pin 63c, and the piston rod 63a is connected to the lifting bracket 61 through another connecting pin 63c. linked to As the actuator 63 operates and the piston rod 63a rises or falls, the lifting bracket 61 moves up and down.

The receiving unit 65 receives an operation signal from the sensor 67 or the lifter driving unit 68 to operate the actuator 63.

In the air-conditioning golf cart 10 according to the second embodiment made as described above, the cool air or warm air output from the air-conditioning unit 40 is confined to some extent inside the boarding space 11b by the door 12. The thermal efficiency is so good.

In addition, when the occupant desires or when the carbon dioxide concentration inside the boarding space 11b rises higher than a set value, outside air may be automatically introduced to provide a more comfortable internal environment.

In the above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications are possible by those skilled in the art within the scope of the technical idea of the present invention.

10: golf cart 11: cart body 11b: boarding space
11c: roof 11e: roof passage 12: door
14: battery 15: outdoor unit 16: indoor unit
16a: indoor unit casing 16b: intake port 16c: discharge port
16d: display unit 16f: operation unit 17: cooling and heating unit
18: auxiliary heater 19: smart terminal 30: support base
31: ventilation frame 31a: ventilation hole 31c: guide slit
33: ventilation control panel 40: heating and cooling unit 41: control panel
43: infrared receiver 45: remote control 51: unit housing
51a: space part 51c: fixed guide protrusion 51e: air inlet
53: elastic contact plate 55: insect repellent screen 60: lifter
61: lifting bracket 63: actuator 63a: piston rod
63c: connection pin 65: receiver 67: sensor
68: lifter drive unit

Claims (6)

delete delete a cart body having a door that opens and closes the boarding space, traveling with passengers on board, having a battery as a power source, and having a square roof passage formed on the roof; It is installed on the roof of the cart body, takes the form of a square frame, accommodates the roof passage in the inner area, and has a ventilation frame in which a plurality of ventilation holes are formed, and a support having a ventilation control plate installed in the ventilation opening and adjusting the degree of opening of the ventilation opening. with the base; a unit accommodating housing detachably installed on an upper portion of the support base, opening a roof passage upward, and having a space portion open to the side through an air inlet; A cooling/heating unit installed in the unit accommodation housing and providing cold or warm air to the boarding space through a roof passage;
The air inlet and the roof passage are disconnected in a state where the heating and cooling unit is seated in the unit accommodation housing,
Inside the unit accommodating housing, a lifting bracket supporting both ends of the cooling and heating unit by raising the cooling and heating unit to connect the air inlet and the roof passage, or by lowering the cooling and heating unit to disconnect the air inlet and the roof passage, and , A lifter having an actuator for lifting each lifting bracket is further installed,
Air-conditioned golf cart. delete According to claim 3,
In the heating and cooling unit;
A control panel manually operated by a passenger and an infrared receiver for receiving an external wireless signal are provided.
Further comprising a remote control for transmitting a control signal to the infrared receiver,
Air-conditioned golf cart. According to claim 3,
Further comprising a smart terminal connected to the heating and cooling unit and battery through a wireless communication network, outputting a control signal and displaying the status of the heating and cooling unit and battery at the same time,
Air-conditioned golf cart.

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